# A367724 (b-file synthesized from sequence entry) 0 1 1 1 2 4 3 18 4 90 5 487 6 2785 7 16559 8 101309 9 633523 10 4030964 11 26012632 12 169842909 13 1119960451 14 7447798584 15 49891581704 16 336355963821 17 2280413834539 18 15538054908152 19 106345134539952 20 730770552189188 21 5039872364942277 22 34872958276988909 23 242026790074533733 24 1684356151039022090