36538domain: NAppears in sequencesa(n) = Sum_{k=1..n-1} k^4*sigma(k)*sigma(n-k).at n=6A259692Number of n-celled quasi still lifes in Conway's Game of Life, up to rotation and reflection.at n=15A330283Number of nonempty subsets of {1..n} whose elements have a square average.at n=22A369391