294840155domain: NAppears in sequences1/4 the number of (n+1) X 2 0..3 arrays with no 2 X 2 subblock having sum 6.at n=6A1837941/4 the number of (n+1)X8 0..3 arrays with no 2X2 subblock having sum 6.at n=0A183800T(n,k) = 1/4 the number of (n+1) X (k+1) 0..3 arrays with no 2 X 2 subblock having sum 6.at n=21A183802