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A160627 as a simple table

na(n)
01
1-3
21
37
41
5-13
6-83
7-57
8-197
91543
10931
11255217
12620863
131283437
14-8184347
15-581939153
16-96325549
17-2261420263
18-9237901697
19-466203083257
20-1399462769491
2188080802505933
22675385729846153
2361756890564641033
2428280520375244993
25495763088616446491

[1,-3,1,7,1,-13,-83,-57,-197,1543,931,255217,
 620863,1283437,-8184347,-581939153,-96325549,
 -2261420263,-9237901697,-466203083257,
 -1399462769491,88080802505933,675385729846153,
 61756890564641033,28280520375244993,
 495763088616446491]