T(n,k) = Number of n X k array permutations with each element moving zero or one space horizontally, diagonally or antidiagonally.

A189650

T(n,k) = Number of n X k array permutations with each element moving zero or one space horizontally, diagonally or antidiagonally.

Terms

    a(0) =1a(1) =2a(2) =1a(3) =3a(4) =9a(5) =1a(6) =5a(7) =33a(8) =32a(9) =1a(10) =8a(11) =185a(12) =263a(13) =121a(14) =1a(15) =13a(16) =913a(17) =4277a(18) =2161a(19) =450a(20) =1a(21) =21a(22) =4777a(23) =55440a(24) =107080a(25) =17655a(26) =1681a(27) =1a(28) =34a(29) =24577

External references