# A034274 (b-file synthesized from sequence entry)
1 5
2 25
3 119
4 546
5 2442
6 10725
7 46475
8 199342
9 848198
10 3585946
11 15080870
12 63146500
13 263432340
14 1095517485
15 4543460595
16 18798494550
17 77616288750
18 319874637390
19 1316106144210
20 5407045011420
21 22184521682700
22 90910797617250
23 372137346502974