# A148904 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 8
4 32
5 102
6 442
7 1608
8 7186
9 28334
10 129212
11 535710
12 2480758
13 10642688
14 49853972
15 219281189
16 1036152285
17 4644935059
18 22096999787
19 100542924803
20 480894907633
21 2214284711215
22 10637823281461
23 49458116493185
24 238483479012151
25 1117669034226221
26 5406149577305619
27 25506269301398852