163520domain: NAppears in sequencesTheta series of A_15 lattice.at n=3A023906a(n) = A004017(n)/2.at n=26A045825Triangle T(d,v) read by rows: the number of hyper-tetrahedra with volume v/d! defined by selecting d+1 vertices of the d-dimensional unit-hypercube.at n=24A268408a(n) = A000203(A344422(n)).at n=11A345260