# A217375 (b-file synthesized from sequence entry) 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 8 11 40 12 168 13 604 14 2076 15 7320 16 26132 17 93352 18 333992 19 1199716 20 4329180