# A150784 (b-file synthesized from sequence entry)
0 1
1 2
2 8
3 30
4 134
5 571
6 2670
7 12050
8 57641
9 268306
10 1300437
11 6168383
12 30146565
13 144778919
14 711522834
15 3446669757
16 17004930040
17 82888652696
18 410104670917
19 2008345434081
20 9957453656261
21 48937464837269
22 243020471153051
23 1197697314987039
24 5955021837967973
25 29413749707956834
26 146388432410147800