# A150773 (b-file synthesized from sequence entry)
0 1
1 2
2 8
3 30
4 128
5 559
6 2504
7 11446
8 52878
9 247011
10 1162047
11 5503850
12 26197543
13 125260037
14 601111800
15 2893859691
16 13970128793
17 67601744906
18 327818426179
19 1592633947709
20 7750307338336
21 37771613990443
22 184328164993382
23 900619247737124
24 4405202828086163
25 21568681136645873
26 105700540673190686