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A115183 as a simple table

n a(n)
1 1
2 0
3 -1
4 -1
5 -1
6 1
7 269
8 157
9 3277817
10 -49397
11 -10365557
12 -847243693
13 -328990404361
14 2359554667
15 13521593667734879
16 3119353059383129
17 10406829533213819
18 -22913020177568301829
19 -1190728098581644927239161
20 -577358636244139725973

[1,0,-1,-1,-1,1,269,157,3277817,-49397,-10365557,
 -847243693,-328990404361,2359554667,
 13521593667734879,3119353059383129,
 10406829533213819,-22913020177568301829,
 -1190728098581644927239161,-577358636244139725973]

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Last modified April 24 12:50 EDT 2024. Contains 371943 sequences. (Running on oeis4.)