T(n,k)=Number of (n+1)X(k+1) 0..4 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 8.

A234982

T(n,k)=Number of (n+1)X(k+1) 0..4 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 8.

Terms

    a(0) =182a(1) =1664a(2) =1664a(3) =14420a(4) =34862a(5) =14420a(6) =127982a(7) =684282a(8) =684282a(9) =127982a(10) =1127550a(11) =13888792a(12) =29606864a(13) =13888792a(14) =1127550a(15) =9962574a(16) =280501760a(17) =1373159910a(18) =1373159910a(19) =280501760a(20) =9962574a(21) =87941706a(22) =5681668040a(23) =62993589692

External references