52890624domain: NAppears in sequencesExpansion of x*(31 + 326*x + 336*x^2 + 26*x^3 + x^4) / (1 - x)^6.at n=23A316457Numbers k such that k and k+1 both have the same number of cubefree divisors and 3-full divisors.at n=8A360907