# A093630 (b-file synthesized from sequence entry)
0 1
1 2
2 4
3 13
4 39
5 159
6 657
7 3192
8 16935
9 98296
10 631531
11 4320963
12 32517883
13 257323288
14 2216360166
15 19945970812
16 193524780624
17 1952830925615
18 21070751003175
19 235689971665480
20 2800003524200187
21 34386283795145455
22 445955787460382981