# A162769 (b-file synthesized from sequence entry)
0 1
1 9
2 61
3 389
4 2441
5 15249
6 95141
7 593389
8 3700561
9 23077209
10 143911501
11 897442709
12 5596515161
13 34900251489
14 217640345141
15 1357219994749
16 8463716161441
17 52780309349289
18 329141597018461
19 2052549373305509