**This is a thread for your Useful discoveries.**

This is for any pattern which dosen't fit in the Accidental, Useless and Unsure threads.

I will start with this memory cell:

Code: Select all

```
x = 256, y = 256, rule = LifeHistory
156.A$154.3A$116.2A11.A6.2A15.A$116.2A10.A.A4.A2.A14.2A54.D.D$128.A.A
3.A.3A2.2A64.D5.D$127.2A.2A.A.A6.A79.3D.3D.3D$131.A.A3.2A3.A.A61.D4.D
2.D7.D.D.D3.D$127.2A.A2.4A.A4.2A64.2D5.D.D.D.D.D.2D2.2D$127.2A.A.A3.A
69.D3.2D2.D7.D.D.D3.D$131.A.A3.A84.3D.D3.D$132.A.A3.A68.D5.D$133.A3.
2A14.A55.D.D$152.A.A$153.A2$124.2A11.D$124.2A9.3D$109.2A24.D.D$108.A
2.A23.D$107.A.2A42.2A$107.A45.2A$85.D.D18.2A$83.D5.D31.2A$68.3D.3D46.
A$68.D.D.D.D7.D4.D2.D31.3A$68.D.D.D.D.D.D.D4.2D37.A5.2A$68.D.D.D.D7.D
3.2D2.D38.A.A$68.3D.D.D54.A$83.D5.D38.2A$85.D.D2$136.A15.2A$91.2A42.A
.A14.A.A$92.A42.A.A16.A$90.A45.A17.2A26.D.D$61.A28.5A14.2A29.2A38.D5.
D$61.3A31.A13.A30.A.A52.2D2.3D2.D2.2D$64.A27.3A12.A.A32.A36.D4.D2.D7.
D.D.D3.D.D.D.D$63.2A26.A15.2A33.2A38.2D5.D.D.D.2D2.2D2.3D.D.D$91.4A
84.D3.2D2.D7.D.D.D3.D.D.D.D$89.2A3.A3.2A95.D.D.3D.D.D.2D$55.2A31.A2.
3A4.2A80.D5.D$55.A32.2A.A90.D.D$52.2A.A35.A$52.A2.3A4.2A27.2A$53.2A3.
A3.2A$55.4A$55.A15.2A26.2A$56.3A12.A.A26.A$59.A13.A23.3A$54.5A14.2A
22.A37.2A$54.A80.2A$56.A$55.2A3$196.A$98.A97.3A$98.3A98.A20.2A$101.A
96.2A20.2A$88.A11.2A11.2A11.D$86.3A24.2A9.3D$85.A38.D.D$85.2A37.D$70.
2A$71.A73.2A36.A$71.A.2A70.2A36.3A$72.A2.A23.D86.A$73.2A24.D.D71.A11.
2A11.2A11.D$88.2A9.3D69.3A24.2A9.3D$88.2A11.D22.2A44.A38.D.D$123.A.A
44.2A37.D$123.A31.2A$122.2A32.A73.2A$97.A3.2A53.A.2A70.2A$96.A.A3.A
54.A2.A23.D$95.A.A3.A56.2A24.D.D$91.2A.A.A3.A12.2A58.2A9.3D$91.2A.A2.
4A.A10.A59.2A11.D22.2A$95.A.A3.A.A10.3A91.A.A$91.2A.2A2.A2.A.A12.A91.
A$92.A.A2.2A3.A104.2A$80.2A10.A.A87.A3.2A$80.2A11.A87.A.A3.A$87.2A91.
A.A3.A$86.A.A87.2A.A.A3.A12.2A20.D.D$80.2A4.A89.2A.A2.4A.A10.A19.D5.D
$78.A2.A2.2A.4A89.A.A3.A.A10.3A31.3D.3D.3D.3D.D3.3D$78.2A.A.A.A.A2.A
85.2A.2A2.A2.A.A12.A15.D4.D2.D8.D2.D.D.D3.D3.D3.D$81.A.A.A.A89.A.A2.
2A3.A32.2D5.D.D.D2.D2.D.D.D3.D.D.D3.2D$81.A.A.2A78.2A10.A.A37.D3.2D2.
D8.D2.D.D.D.D.D.D.D3.D$82.A82.2A11.A55.D2.3D.3D.3D.3D.3D$218.D5.D$95.
2A123.D.D$86.2A7.A$86.2A5.A.A$93.2A7$83.2A$84.A$81.3A$81.A8$49.A20.2A
$49.3A18.A.A$52.A15.2A2.A$51.2A14.A4.2A$67.A14.2A8.2A$66.2A.A12.2A8.
2A$43.2A20.A2.2A$43.A21.2A33.2C$40.2A.A56.C.C$40.A2.3A4.2A49.C36.A11.
2A$41.2A3.A3.2A12.A.2A69.A.A10.2A$43.4A17.2A.A24.D32.A3.A3.2A2.A.A$
43.A15.2A31.2D29.3A2.A.A2.A2.2A.2A$44.3A12.A.A29.2D29.A5.A.A3.A.A$47.
A13.A60.2A5.A.4A2.A.2A$42.5A14.2A3.2A63.A3.A.A.2A$42.A20.A.A.A35.2A
25.A3.A.A$44.A18.A.A32.2A.A2.A24.A3.A.A$43.2A17.2A.2A30.A.A.3A25.2A3.
A$94.A2.A.A$94.4A.3A$98.A3.A$96.A.A2.2A27.D11.2A$96.2A32.3D9.2A16.2A$
130.D.D24.2A2.A$132.D23.A2.2A$157.A$67.3D40.2A46.3A$68.D41.2A49.A$68.
3D74.2A13.2A$146.A$143.3A$131.2A10.A55.2A$131.A.A64.A.A$133.A58.2A4.A
$133.2A55.A2.A2.2A.4A$170.2A18.2A.A.A.A.A2.A$163.2A5.A.A20.A.A.A.A$
163.2A7.A20.A.A.2A$172.2A20.A2$159.A47.2A$158.A.A.2A34.2A7.A$158.A.A.
A.A33.2A5.A.A$155.2A.A.A.A.A2.A37.2A$51.2A16.2A84.A2.A2.2A.4A$50.A.A
16.2A7.2A77.2A4.A$50.A27.A84.A.A$40.2A7.2A17.D7.A.A85.2A$39.A2.A2.2A
20.3D6.2A$40.2A2.A.A20.D.2D$42.2A151.2A$42.A153.A$39.2A.A2.A147.3A$
39.A2.A.A.A146.A24.2A$41.2A.2A14.2A156.A$60.2A42.A115.A$104.3A93.2A
14.5A$74.2A31.A93.A13.A$58.2A14.A.A29.A.A92.A.A12.3A$57.A.A16.A29.A.A
93.2A15.A$57.A18.2A29.A108.4A$56.2A153.2A3.A3.2A$211.2A4.3A2.A$219.A.
2A$51.2A166.A$50.A2.A2.2A64.2A94.2A$51.2A2.A.A3.3D58.2A$53.2A7.D8.2A$
53.A8.3D6.A138.2A$50.2A.A2.A15.3A135.A$50.A.2A.A.A16.A27.2A107.3A$54.
A.A44.A.A109.A$51.2A2.A45.A$49.3A.2A45.2A7.2A$48.A60.2A$49.3A.2A$51.A
.2A62.2A.A$97.A19.2A.3A$61.2A34.3A23.A$61.2A7.2A28.A16.2A.3A$70.A2.A
25.2A15.A2.2A$68.A.A.2A41.A.A$68.2A.A42.A.A.3A$71.A43.A2.A2.A$71.3A
18.2A13.3D8.A.A.A$74.A16.A2.A14.D7.2A2.A.A51.A$48.2A23.2A17.2A14.3D3.
A.A2.A.A.A49.3A$48.2A64.2A2.2A.2A49.A$172.2A$89.2A$90.A30.A$87.3A29.
3A$64.A22.A30.A$63.A.A17.2A33.2A$12.D50.A.A10.2A5.A.A$10.2D52.A11.2A
7.A76.2A$11.2D52.3A17.2A74.A.A5.2A$9.D57.A93.A7.2A$7.2D63.A87.2A$8.2D
61.A.A.2A$6.D64.A.A.A.A96.A$4.2D62.2A.A.A.A.A2.A12.2A18.A56.2A.A.A$5.
2D61.A2.A2.2A.4A13.A10.2A5.A.A54.A.A.A.A$70.2A4.A14.3A11.2A6.A52.A2.A
.A.A.A.2A$76.A.A12.A74.4A.2A2.A2.A$77.2A91.A4.2A$168.A.A$3D.3D.3D157.
2A$D.D.D3.D$D.D.2D2.2D$D.D.D3.D$3D.D3.D12$143.D$144.2D$143.2D$146.D$
147.2D$146.2D$149.D$150.2D$149.2D5$149.3D.3D$149.D.D.D.D$149.D.D.D.D$
149.D.D.D.D$149.3D.D.D!
```