65132domain: NAppears in sequencesNumber of (4+2) X (n+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 0 3 5 6 or 7 and every 3 X 3 column and antidiagonal sum not equal to 0 3 5 6 or 7.at n=17A252388Expansion of Sum_{k>=0} (k * x/(1 - x))^k.at n=6A355494