# A367261 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 16
4 77
5 393
6 2113
7 11761
8 67217
9 392140
10 2325691
11 13980390
12 84990482
13 521623164
14 3227679457
15 20114056545
16 126125100615
17 795207084713
18 5038166859565
19 32059491655921
20 204806561028553
21 1313023485343009
22 8445060537757367
23 54476991669555231