Number of 6Xn 0..1 arrays avoiding 0 0 1 and 0 1 1 horizontally and 0 0 1 and 1 1 0 vertically.
A207406
Number of 6Xn 0..1 arrays avoiding 0 0 1 and 0 1 1 horizontally and 0 0 1 and 1 1 0 vertically.
Terms
- a(0) =12a(1) =144a(2) =636a(3) =2809a(4) =8692a(5) =26896a(6) =68060a(7) =172225a(8) =380970a(9) =842724a(10) =1690038a(11) =3389281a(12) =6303584a(13) =11723776a(14) =20533728a(15) =35964009a(16) =59970000a(17) =100000000a(18) =160050000a(19) =256160025a(20) =395963700a(21) =612067600a(22) =918225100a(23) =1377523225a(24) =2013488750
External references
- oeis: A207406