# A077837 (b-file synthesized from sequence entry)
0 1
1 2
2 9
3 35
4 136
5 531
6 2071
7 8078
8 31509
9 122903
10 479392
11 1869903
12 7293691
13 28449566
14 110969577
15 432844811
16 1688342296
17 6585500475
18 25687217935
19 100194839822
20 390817174221
21 1524410477999
22 5946072636304
23 23193083691351
24 90466289938963
25 352870266163550