# A148875 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 8
4 29
5 104
6 405
7 1634
8 6788
9 28922
10 125559
11 554058
12 2474920
13 11188064
14 51025586
15 234609810
16 1086430868
17 5061096381
18 23702973326
19 111544459533
20 527097647852
21 2500077258967
22 11898645626830
23 56798990784424
24 271874618573959
25 1304627798728260
26 6274476702322705
27 30238642580810987