# A334977 (b-file synthesized from sequence entry)
0 0
1 1
2 9
3 53
4 299
5 1692
6 9690
7 56221
8 330165
9 1959945
10 11745435
11 70974252
12 432019844
13 2646716264
14 16307880462
15 100996570221
16 628356589721
17 3925544432355
18 24616047166095
19 154886752443885
20 977595783524955
21 6187863825170160
22 39269844955755960
23 249819662230403148