# A148079 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 4
4 9
5 24
6 63
7 183
8 537
9 1618
10 5055
11 15861
12 51109
13 166314
14 547505
15 1827009
16 6133802
17 20809959
18 71063163
19 244205379
20 844896468
21 2936454598
22 10260887025
23 36010311788
24 126874109569
25 448803378080
26 1592742931810
27 5671060122989
28 20251948686857
29 72515863744189
30 260339300061495
31 936826545096596