88981domain: NAppears in sequencesExpansion of (1+4x^2)/(1-x-16x^5).at n=17A098526The number of P-positions in the game of Nim with up to 5 piles, allowing for piles of zero, such that the number of objects in each pile does not exceed n.at n=18A241523Expansion of e.g.f. exp( (1 - (1 - 9*x)^(1/3))/3 ).at n=5A374882