# A130908 (b-file synthesized from sequence entry)
0 1
1 2
2 6
3 23
4 106
5 576
6 3622
7 26006
8 210828
9 1910096
10 19162096
11 211095732
12 2534829376
13 32962249568
14 461527198056
15 6923249156336
16 110774157354832
17 1883174989346016
18 33897247428278368
19 644048388555567536
20 12880972761058252896
21 270500465268345299072
22 5951010522336442007776
23 136873244273143429751328