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Consists of B-heptominoes climbing up gliders or still lifes, but not managing to become Herschels in the process.
The idea of a (13,1)c/31 spaceship was mentioned by Gabriel Nivasch upon completion of the original caterpillar, before any oblique spaceships were found or constructed in Life. Some initial work on helix variants and other crawler-supporting mechanisms was done in 2016.
- ↑ Gabriel Nivasch (January 2005). "The Caterpillar spaceship". Retrieved on 16 July 2016.
- ↑ 13131: The B-Heptomino/Glider Spaceship Thread (discussion thread) at the ConwayLife.com forums