# A099101 (b-file synthesized from sequence entry) 0 1 1 0 2 3 3 5 4 16 5 43 6 113 7 316 8 839 9 2301 10 6204 11 16855 12 45665 13 123800 14 335659 15 909845 16 2466760 17 6686979 18 18128529 19 49145300 20 133231279 21 361184653 22 979156724 23 2654456239 24 7196122817 25 19508406192 26 52886508243 27 143373224101