# A016248 (b-file synthesized from sequence entry)
0 1
1 19
2 271
3 3511
4 43687
5 533575
6 6458887
7 77842567
8 936126343
9 11245609351
10 135019871623
11 1620673815943
12 19450697930119
13 233424047994247
14 2801182612927879
15 33614755577116039
16 403380452257281415