# A147506 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 3
6 5
7 13
8 17
9 45
10 89
11 2453
12 5391
13 90561
14 234023
15 4542721
16 13430469
17 852217819
18 3057070197
19 235450310313
20 994613290405
21 113069663601167
22 560671202395083
23 138912840204968035