# A062954 (b-file synthesized from sequence entry) 0 2 1 2 2 6 3 12 4 84 5 924 6 2772 7 80388 8 3778236 9 71786484 10 2943245844 11 585705922956 12 13471236227988 13 7018514074781748 14 1972202455013671188 15 61138276105423806828 16 134932175364670341669396 17 481842798227237790101413116 18 154671538230943330622553610236