82514domain: NAppears in sequencesExpansion of phi(x) / phi(x^2) * f(-x, -x^7) / f(-x^3, -x^5) in powers of x where phi(), f() are Ramanujan theta functions.at n=48A230534Number of nX7 0..1 arrays with every element equal to 1, 2 or 4 king-move adjacent elements, with upper left element zero.at n=21A297857