# A148636 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 6
4 22
5 61
6 221
7 715
8 2677
9 9456
10 36176
11 134565
12 526917
13 2028208
14 8091308
15 31929777
16 129378035
17 520401679
18 2135953773
19 8722585918
20 36193244102
21 149624642757
22 626656142107
23 2617098759731
24 11049094963395
25 46543855094639
26 197872752185473
27 839747689320864
28 3591806175639896