12301987920domain: NAppears in sequencesNumber of chiral pairs of polyominoes composed of n pentagonal cells of the hyperbolic regular tiling with Schläfli symbol {5,oo}.at n=11A369471Number of chiral pairs of asymmetric polyominoes with n pentagonal cells of the hyperbolic regular tiling with Schläfli symbol {5,oo}.at n=15A389194