# A123549 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 7 4 36 5 265 6 3039 7 56532 8 1795771 9 100752242 10 10189358360 11 1879720735880 12 637617233537026 13 400169631647375590 14 467115844246503901102 15 1018822456144128438039598 16 4169121243929999956903622399 17 32126195519194538601647462868271