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A351941 as a simple table

na(n)
01
1-1
21
30
4-3
58
6-3
7-57
8225
9-96
10-2991
1113873
12-255
13-313506
141495089
151473024
16-54621231
17243365688
18705129201
19-14109279483
2053228648865
21349791931434
22-5000315242479
2313572033641204
24204954070915977
25-2294997521498172
262691551249257017

[1,-1,1,0,-3,8,-3,-57,225,-96,-2991,13873,-255,
 -313506,1495089,1473024,-54621231,243365688,
 705129201,-14109279483,53228648865,349791931434,
 -5000315242479,13572033641204,204954070915977,
 -2294997521498172,2691551249257017]