# A015490 (b-file synthesized from sequence entry) 0 1 1 5 2 26 3 676 4 85176 5 53320176 6 166678870176 7 2604524025370176 8 203481044006070370176 9 79484986295915244420370176 10 155244193344195757673779920370176 11 1516056730871105040228764708644920370176