440341domain: NAppears in sequencesG.f. A(x) satisfies: 1-x = Sum_{n>=0} (A(x) + (-x)^n)^n * (-x)^n.at n=14A247332Number of (3+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 2 3 4 6 or 7 and every 3X3 column and antidiagonal sum not equal to 2 3 4 6 or 7.at n=9A252410