# A012854 (b-file synthesized from sequence entry)
0 0
1 -1
2 3
3 -1
4 89
5 -19
6 61
7 -751
8 214157
9 -2857
10 2440391
11 -434293
12 4786462007
13 -8181904909
14 1166310802697
15 -5044289
16 1618597982932877
17 -5026792806787
18 3508902074919929
19 -69028763155644023
20 739712409650680415009
21 -1022779523247467
22 133929790442712217763
23 -750218743980105669781
24 129849827600028451700919961