# A099432 (b-file synthesized from sequence entry) 0 1 1 6 2 33 3 162 4 756 5 3402 6 14931 7 64314 8 273051 9 1145988 10 4764744 11 19656756 12 80561061 13 328316814 14 1331513397 15 5377120038 16 21633427836 17 86747114430 18 346810621815 19 1382826606210 20 5500378861551 21 21830478128136 22 86469557676048