58349domain: NAppears in sequencesa(n) = (2*n^3 + 5*n^2 - 7*n)/2.at n=37A162261Numerators in an "almost partition identity".at n=5A282030Number of chiral pairs of polyominoes composed of n tetrahedral cells of the hyperbolic regular tiling with Schläfli symbol {3,3,oo}.at n=10A371350