# A150988 (b-file synthesized from sequence entry)
0 1
1 2
2 9
3 37
4 165
5 746
6 3448
7 16119
8 76013
9 361046
10 1723957
11 8267905
12 39795471
13 192115078
14 929836921
15 4510146186
16 21918059442
17 106692274128
18 520116707988
19 2538844379366
20 12407352640571
21 60698913755434
22 297233707139452
23 1456780194366246
24 7145567035991768
25 35075029494865320
26 172287382987613178