294704domain: NAppears in sequencesExpansion of Product_{k>=1} 1/((1 - x^(2*k))*(1 - x^(2*k-1))^3).at n=25A298311Number of nX3 0..1 arrays with every element unequal to 0, 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=23A317810