29557domain: NAppears in sequencesExpansion of (1-x)^(-1)/(1-x-x^2+2*x^3).at n=39A077867Partial sums of A138202.at n=32A164940Number of partitions of n such that (number parts having multiplicity 1) is a part and (number of parts > 1) is not a part.at n=43A241513a(n) = Sum_{k=1..n} (k/gcd(n, k))^3.at n=20A343513