# A156076 (b-file synthesized from sequence entry)
-1 1
0 4
1 17
2 136
3 1666
4 27200
5 555152
6 13596736
7 388512016
8 12687211520
9 466101423872
10 19026204891136
11 854312172054016
12 41847505957437440
13 2220673304780705792
14 126906669626284711936
15 7770472824437270972416
16 507503647885498965032960
17 35217605908746553266470912