62455domain: NAppears in sequencesG.f. satisfies: A(x) = exp( Sum_{n>=1} A(x^n) / A(-x^n) * x^n/n ).at n=13A198785Number of nX4 binary arrays with rows and columns lexicographically nondecreasing and row and column sums nondecreasing.at n=9A266358Harary index of the n X n black bishop graph.at n=30A296198