# A377004 (b-file synthesized from sequence entry) 0 1 1 1 2 4 3 19 4 194 5 3144 6 65548 7 1272696 8 21855504 9 328629713 10 4362818853 11 51658865022 12 551021529952 13 5342121192394 14 47446872310092 15 388746259849648 16 2956322263908194 17 20980847841062062 18 139630332607991630 19 875184633222730558 20 5186438905325403553