Number of n-celled pseudo still lifes in Conway's Game of Life, up to rotation and reflection.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =1a(8) =1a(9) =7a(10) =16a(11) =55a(12) =110a(13) =279a(14) =620a(15) =1645a(16) =4067a(17) =10843a(18) =27250a(19) =70637a(20) =179011a(21) =462086a(22) =1184882a(23) =3069135a(24) =7906676a(25) =20463274a(26) =52816265a(27) =136655095a(28) =353198379a(29) =914075620