# A012759 (b-file synthesized from sequence entry)
0 0
1 1
2 -1
3 3
4 0
5 -57
6 405
7 -1827
8 -4424
9 223541
10 -2901285
11 19263167
12 121524216
13 -6372341445
14 112206095729
15 -915357416711
16 -12418256340720
17 674275623382473
18 -14438518400518281
19 129951850481453275