81623domain: NAppears in sequencesExpansion of Product_{m>=1} (1 + m*q^m)^-2.at n=24A022694Convolution of A023531 and Lucas numbers.at n=23A023558Number of (n+2) X (3+2) 0..1 arrays with no 3 x 3 subblock diagonal sum 0 and no antidiagonal sum 3 and no row sum 1 and no column sum 1.at n=23A257442