# A012511 (b-file synthesized from sequence entry)
0 0
1 0
2 2
3 -3
4 12
5 -40
6 310
7 -2331
8 22344
9 -214992
10 2532058
11 -32683915
12 481944980
13 -7585016088
14 130778587966
15 -2420926296075
16 48554376131408
17 -1038765449765536
18 23704180919254962
19 -572815315696075155