T(n,k)=Number of nXk 0..4 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value (x(i,j)+1) mod 5, and upper left element zero.
A230571
T(n,k)=Number of nXk 0..4 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value (x(i,j)+1) mod 5, and upper left element zero.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =0a(9) =0a(10) =0a(11) =0a(12) =0a(13) =0a(14) =0a(15) =0a(16) =0a(17) =2a(18) =0a(19) =0a(20) =0a(21) =0a(22) =2a(23) =60a(24) =32a(25) =0a(26) =0a(27) =0a(28) =0a(29) =8
External references
- oeis: A230571