1228890domain: NAppears in sequencesNumber of chiral pairs of polyominoes with n heptagonal cells of the hyperbolic regular tiling with Schläfli symbol {7,oo}.at n=5A389562Number of chiral pairs of asymmetric polyominoes with n heptagonal cells of the hyperbolic regular tiling with Schläfli symbol {7,oo}.at n=5A389564