200040domain: NAppears in sequencesIndices of zeros in A079777.at n=16A073853a(n) = 8000*n + 40.at n=24A157663Number of nX6 0..1 arrays with every element equal to 0, 1, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=12A302513