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A351779 as a simple table

na(n)
01
1-1
24
3-63
42288
5-138525
612381084
7-1528482823
8249005711296
9-51739455340953
1013353206066063900
11-4190486732316600771
121571373340568392914288
13-693899460077821703051125
14356404409990391961980227068
15-210670220153918100996704166975

[1,-1,4,-63,2288,-138525,12381084,-1528482823,
 249005711296,-51739455340953,13353206066063900,
 -4190486732316600771,1571373340568392914288,
 -693899460077821703051125,
 356404409990391961980227068,
 -210670220153918100996704166975]