# A148424 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 5
4 18
5 59
6 235
7 893
8 3810
9 15513
10 68355
11 291633
12 1316392
13 5780793
14 26499220
15 118934221
16 551889602
17 2515299167
18 11775715141
19 54333877955
20 256237560742
21 1193389613255
22 5660224648326
23 26567605325073
24 126621506371332
25 598025706185715
26 2861510181706267
27 13586615488837211
28 65234679563225012