# A012713 (b-file synthesized from sequence entry)
0 0
1 1
2 2
3 3
4 -12
5 -147
6 -890
7 63
8 76776
9 1130489
10 6587338
11 -92728933
12 -3395342500
13 -47724446811
14 -11416580786
15 18058083754519
16 494993369091536
17 5229048665015409
18 -122759838344591214
19 -7368934381520578637