# A171185 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 14
4 40
5 126
6 408
7 1332
8 4473
9 15377
10 53627
11 189724
12 680475
13 2467975
14 9038578
15 33399571
16 124400702
17 466619283
18 1761467038
19 6688059913
20 25527326897
21 97901917060
22 377123873505
23 1458573962761
24 5662223702216
25 22056563938599