9691375domain: NAppears in sequencesNumber of ways to choose 4 distinct points from an (n+1) X (n+1) X (n+1) lattice cube.at n=3A103157a(n) = binomial((n+2)^3,n+1).at n=3A158363G.f. Sum_{n=-oo..+oo} x^n * (1 + x^n)^(n^3).at n=25A386669