# A125360 (b-file synthesized from sequence entry) 0 1 1 23 2 187 3 1223 4 9347 5 72573 6 577279 7 4654925 8 37943939 9 311837075 10 2579551497 11 21450968309 12 179155113323 13 1501673922057 14 12625149738521 15 106416815593683 16 898941182378771 17 7607848721495845 18 64489085542582579 19 547401698354394021