138456domain: NAppears in sequencesExpansion of e.g.f.: cos(arcsin(x)*exp(x))=1-1/2!*x^2-6/3!*x^3-27/4!*x^4-100/5!*x^5...at n=9A012320Nonprime numbers k such that k | sigma_3(k) + phi(k)^3.at n=27A055970Number of integer solutions (a_1, a_2, ... , a_8) to the equation a_1^2 + 2*a_2^2 + ... + 8*a_8^2 = 3*n.at n=39A320243