918540domain: NAppears in sequencesTriangle (sans apex) of coefficients of terms of the form (eM_1)^j*(eM_2)^k re construction of triangle A287768.at n=50A288842Number of integer grid points on the circle around (0,0) with radius A088959(n).at n=35A365620Expansion of e.g.f. exp(x^2/2 * (1 + x)^3).at n=9A373741