1185255domain: NAppears in sequencesNumber of (n+1) X 3 0..1 arrays with the determinants of 2 X 2 subblocks nondecreasing rightwards and downwards.at n=7A204610T(n,k) = Number of (n+1) X (k+1) 0..1 arrays with the determinants of 2 X 2 subblocks nondecreasing rightwards and downwards.at n=37A204616