# A009764 (b-file synthesized from sequence entry)
0 0
1 2
2 16
3 272
4 7936
5 353792
6 22368256
7 1903757312
8 209865342976
9 29088885112832
10 4951498053124096
11 1015423886506852352
12 246921480190207983616
13 70251601603943959887872
14 23119184187809597841473536
15 8713962757125169296170811392
16 3729407703720529571097509625856