48646domain: NAppears in sequencesa(n) = 1 + n*(n+1)*(n-1)/2.at n=46A158842G.f. satisfies A(x) = exp( Sum_{n>=1} (A(x^n) + A(-x^n))/2 * x^n/n ).at n=23A195865Number of nX3 0..1 arrays with every element equal to 0, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.at n=10A300133