T(n,k)=Number of (n+3)X(k+3) 0..3 arrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 4, and upper left element zero.
A230796
T(n,k)=Number of (n+3)X(k+3) 0..3 arrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 4, and upper left element zero.
Terms
- a(0) =144a(1) =1024a(2) =1024a(3) =23104a(4) =32912a(5) =23104a(6) =394384a(7) =2096704a(8) =2096704a(9) =394384a(10) =5475600a(11) =84019184a(12) =280495504a(13) =84019184a(14) =5475600a(15) =84052224a(16) =3164737536a(17) =29033433664a(18) =29033433664a(19) =3164737536a(20) =84052224a(21) =1326125056a(22) =128788339184
External references
- oeis: A230796