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A124885 as a simple table

n a(n)
1 -1
2 -1
3 12
4 22
5 34
6 49
7 68
8 90
9 117
10 147
11 180
12 219

[-1,-1,12,22,34,49,68,90,117,147,180,219]

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Last modified March 28 04:13 EDT 2024. Contains 371235 sequences. (Running on oeis4.)