59947domain: NAppears in sequences"CFK" (necklace, size, unlabeled) transform of 1,2,3,4...at n=19A032141Number of odd singletons in all partitions of n (n>=0).at n=41A265257a(n) is the least number k such that 1 + 2*k + 3*k^2 has exactly n prime divisors, counted with multiplicity.at n=14A358205