# A151231 (b-file synthesized from sequence entry)
0 1
1 3
2 13
3 59
4 277
5 1319
6 6361
7 30919
8 151161
9 741995
10 3653653
11 18034963
12 89197069
13 441836367
14 2191403681
15 10880204831
16 54066819569
17 268870611475
18 1337907024541
19 6660994916011
20 33178027851653
21 165323123545783
22 824073328495721
23 4108927984722999
24 20493008413831273
25 102231304855402491