# A005499 (b-file synthesized from sequence entry)
0 5
1 26
2 119
3 538
4 2310
5 9882
6 41715
7 175088
8 730626
9 3037510
10 12584726
11 52003792
12 214401024
13 882233898
14 3624161175
15 14865947668
16 60898934250
17 249184153548
18 1018532686314
19 4159265561360
20 16970015555220
21 69183689403686