# A148806 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 8
4 26
5 84
6 305
7 1086
8 4078
9 15461
10 60478
11 236475
12 944909
13 3810840
14 15527946
15 63575099
16 263179621
17 1096167860
18 4587850961
19 19302087093
20 81731578479
21 347390982785
22 1481651268480
23 6347010201749
24 27296848791921
25 117702207650679
26 509009215641176
27 2208567192496882
28 9607641406127315