# A151018 (b-file synthesized from sequence entry)
0 1
1 2
2 9
3 39
4 189
5 896
6 4417
7 21576
8 107073
9 529240
10 2634775
11 13093073
12 65293025
13 325328452
14 1623926483
15 8102847121
16 40470054325
17 202092673302
18 1009726970717
19 5044555157671
20 25210265604259
21 125984999325888
22 629709173954791
23 3147443384782430
24 15733446109267457
25 78648558624960914