# A103177 (b-file synthesized from sequence entry)
0 3
1 7
2 18
3 50
4 145
5 429
6 1280
7 3832
8 11487
9 34451
10 103342
11 310014
12 930029
13 2790073
14 8370204
15 25110596
16 75331771
17 225995295
18 677985866
19 2033957578
20 6101872713
21 18305618117
22 54916854328
23 164750562960
24 494251688855
25 1482755066539