# A150263 (b-file synthesized from sequence entry)
0 1
1 2
2 6
3 22
4 88
5 362
6 1550
7 6778
8 30104
9 135458
10 616280
11 2825772
12 13050732
13 60641808
14 283188618
15 1328339472
16 6255474500
17 29558166908
18 140095615008
19 665841903428
20 3172346398542
21 15148207045422
22 72482131975406
23 347460312983430
24 1668482689041102
25 8024617166540062
26 38650704248517114
27 186413214485517048