# A369502 (b-file synthesized from sequence entry) 0 1 1 6 2 47 3 420 4 4059 5 41316 6 436345 7 4737018 8 52535950 9 592667532 10 6779699073 11 78458218746 12 916886214115 13 10805128064100 14 128260666769895 15 1532180536574580 16 18405744106135914 17 222204347510440092 18 2694506677864591810 19 32804976554127379680 20 400837173223351237295