47481domain: NAppears in sequencesNumber of nonprime parts in the last section of the set of partitions of n.at n=39A144121Convolution of natural numbers (A000027) with tetradecagonal numbers (A051866).at n=17A220212Expansion of (1 + x^4 - x^5)/((1 + x^4 - x^5)^2 - 4*x^4).at n=42A376728