# A028195 (b-file synthesized from sequence entry) 0 1 1 36 2 825 3 15380 4 254721 5 3910596 6 56993545 7 800115060 8 10923586641 9 145981963556 10 1918518760665 11 24879137417940 12 319158529241761 13 4058064014390916 14 51218264422582185 15 642449405949396020