T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with each element of every 2X2 subblock being the sum mod 3 of two others.

A183836

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with each element of every 2X2 subblock being the sum mod 3 of two others.

Terms

    a(0) =31a(1) =127a(2) =127a(3) =523a(4) =823a(5) =523a(6) =2215a(7) =5323a(8) =5323a(9) =2215a(10) =9307a(11) =35755a(12) =53589a(13) =35755a(14) =9307a(15) =39367a(16) =237671a(17) =568635a(18) =568635a(19) =237671a(20) =39367a(21) =165979a(22) =1598975a(23) =5935955a(24) =9622587a(25) =5935955a(26) =1598975a(27) =165979a(28) =701191a(29) =10698847

External references