# A149750 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 17
4 81
5 319
6 1565
7 6763
8 33223
9 149513
10 739755
11 3425529
12 16972105
13 79927467
14 397118453
15 1894350891
16 9420434485
17 45329871053
18 225728778329
19 1093736644385
20 5449569533029
21 26539366097687
22 132332738691287
23 647153828039847
24 3228097425186269
25 15837292116979379
26 79034503921927555