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A357588 as a simple table

na(n)
11
2-2
35
4-11
56
6146
7-1295
87712
9-36937
10141514
11-357676
12-322973
1312078666
14-102218510
15623243991
16-3041134727
1711440387382
18-23657862864
19-95377084665
201570488584608
21-12255377466362
2272288056416374
23-340793435817068
241186234942871544
25-1525020468715715

[1,-2,5,-11,6,146,-1295,7712,-36937,141514,
 -357676,-322973,12078666,-102218510,623243991,
 -3041134727,11440387382,-23657862864,-95377084665,
 1570488584608,-12255377466362,72288056416374,
 -340793435817068,1186234942871544,
 -1525020468715715]