Period-5 oscillators with up to 21 cells
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This page is intended as an editable, up-to-date partial replacement for Mark Niemiec's page on period-5 oscillators with syntheses (https://conwaylife.com/ref/mniemiec/p5.htm).
15 to 16 cells
- Main article: List of oscillators with 3 to 16 cells
| Population | Oscillator | apgcode | Frequency class | Cost in gliders | |
|---|---|---|---|---|---|
| 15 | 
|
Pseudo-barberpole | xp5_y2g0k413zwo0a02z32 | [No natural occurrences] |
9 |
| 16 | 
|
Octagon 2 | xp5_idiidiz01w1 | 29.3 | 5 |
17 cells
| Oscillator | apgcode | Frequency class | Cost in gliders | ||
|---|---|---|---|---|---|
| 1 | 
|
Silver's p5 on aircraft carrier | xp5_wftsw628cz32 | 45.4 | 10 |
| N/A | 
|
Silver's p5 on snake | xp5_wftsw6246z32 | [No natural occurrences] |
10 |
18 cells
| Oscillator | apgcode | Frequency class | Cost in gliders | ||
|---|---|---|---|---|---|
| 1 | 
|
Fumarole | xp5_3pmwmp3zx11 | 35.8 | 7 |
| 2 | 
|
Silver's p5 on eater tail | xp5_w6qgwc453z65w1 | 48 | 8 |
| 3 | 
|
Silver's p5 on eater head | xp5_wftsw62sgz32 | unknown | 8 |
| N/A | 
|
Silver's p5 on long snake | xp5_wftsw6248cz32 | [No natural occurrences] |
10 |