142764domain: NAppears in sequencesRepresentation degeneracies for boson strings.at n=41A005293Number of ways to choose 3 points that form an equilateral triangle from the A000292(n) points in a regular tetrahedral grid of side length n.at n=19A334581Expansion of Sum_{k>0} (1/(1-x^k)^6 - 1).at n=24A363696