T(n,k) = number of n X k 0..7 arrays with values 0..7 introduced in row major order and no element equal to any horizontal or vertical neighbor.
A198914
T(n,k) = number of n X k 0..7 arrays with values 0..7 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) =500a(12) =2051a(13) =500a(14) =15a(15) =52a(16) =10867a(17) =269940a(18) =269940a(19) =10867a(20) =52a(21) =203a(22) =313132a(23) =54381563a(24) =319608038a(25) =54381563a(26) =313132a(27) =203a(28) =877a(29) =10856948
External references
- oeis: A198914