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

A189312

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

Terms

    a(0) =1a(1) =2a(2) =2a(3) =3a(4) =14a(5) =3a(6) =5a(7) =73a(8) =73a(9) =5a(10) =8a(11) =400a(12) =960a(13) =400a(14) =8a(15) =13a(16) =2177a(17) =14714a(18) =14714a(19) =2177a(20) =13a(21) =21a(22) =11854a(23) =216708a(24) =654049a(25) =216708a(26) =11854a(27) =21a(28) =34a(29) =64554

External references