162426domain: NAppears in sequencesExpansion of Product_{k>=0} 1/(1 + x^(3*k+1))^(3*k+1).at n=45A285286Number of ways to select 2 disjoint point triples from an n X n X n triangular point grid, each point triple forming an 2 X 2 X 2 triangle.at n=23A289223