# A074617 (b-file synthesized from sequence entry)
0 2
1 13
2 89
3 637
4 4721
5 35893
6 277769
7 2175277
8 17167841
9 136170853
10 1083507449
11 8638762717
12 68963617361
13 550976517013
14 4404150026729
15 35214889666957
16 281627564601281
17 2252562753138373
18 18018213206747609
19 144134261562183997