# A304932 (b-file synthesized from sequence entry) 1 1 2 2 3 6 4 20 5 87 6 420 7 2254 8 12676 9 73819 10 438795 11 2649555 12 16188915 13 99888892 14 621428188 15 3893646748 16 24548337096 17 155622071065 18 991375878185 19 6343073841027