T(n,k)=1/12 the number of (n+2)X(k+2) 0..2 arrays with each 3X3 subblock containing one of one value, three of another, and five of the last.

A184505

T(n,k)=1/12 the number of (n+2)X(k+2) 0..2 arrays with each 3X3 subblock containing one of one value, three of another, and five of the last.

Terms

    a(0) =252a(1) =1248a(2) =1248a(3) =6132a(4) =4546a(5) =6132a(6) =30024a(7) =17077a(8) =17077a(9) =30024a(10) =149112a(11) =66822a(12) =50590a(13) =66822a(14) =149112a(15) =736200a(16) =281876a(17) =161097a(18) =161097a(19) =281876a(20) =736200a(21) =3618864a(22) =1216766a(23) =579771a(24) =425814a(25) =579771a(26) =1216766a(27) =3618864a(28) =17994960a(29) =5366312

External references