# A150877 (b-file synthesized from sequence entry)
0 1
1 2
2 8
3 33
4 147
5 676
6 3166
7 15053
8 72206
9 349108
10 1696935
11 8285899
12 40599296
13 199495622
14 982557165
15 4848579417
16 23964666699
17 118608352543
18 587706742771
19 2914968510910
20 14470269525829
21 71885142979166
22 357339121440144
23 1777321735893479
24 8844357043484105
25 44030751078285280
26 219287581858809457