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A363470 as a simple table

na(n)
01
12
2-1
3-6
47
542
6-58
7-366
8513
93406
10-4846
11-33310
1248304
13339446
14-499133
15-3565468
165294439
1738312242
18-57332347
19-419177900
20631252549
214654229300
22-7045498256
23-52310262192
2479531957334
25593986308994
26-906439292326
27-6803984285256

[1,2,-1,-6,7,42,-58,-366,513,3406,-4846,-33310,
 48304,339446,-499133,-3565468,5294439,38312242,
 -57332347,-419177900,631252549,4654229300,
 -7045498256,-52310262192,79531957334,593986308994,
 -906439292326,-6803984285256]