75411domain: NAppears in sequencesNumerators of continued fraction convergents to sqrt(861).at n=7A042662Numbers k such that between k and the next prime there are gpf(k) numbers, where gpf(k) denotes the largest prime factor of k.at n=38A235425Expansion of 1/((1 - x)^9 + x^9).at n=11A306942