T(n,k) = number of n X k 0..5 arrays with values 0..5 introduced in row major order and no element equal to any horizontal or vertical neighbor.
A198982
T(n,k) = number of n X k 0..5 arrays with values 0..5 introduced in row major order and no element equal to any horizontal or vertical neighbor.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =4a(5) =2a(6) =5a(7) =34a(8) =34a(9) =5a(10) =15a(11) =481a(12) =1835a(13) =481a(14) =15a(15) =52a(16) =8731a(17) =146286a(18) =146286a(19) =8731a(20) =52a(21) =202a(22) =174454a(23) =12662226a(24) =53082012a(25) =12662226a(26) =174454a(27) =202a(28) =855a(29) =3603244
External references
- oeis: A198982