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A012415 as a simple table

n a(n)
0 0
1 1
2 2
3 -1
4 -28
5 -115
6 230
7 7051
8 43080
9 -172327
10 -6067382
11 -47080361
12 309697324
13 12289126629
14 114505019694
15 -1105109602973
16 -48948382516592
17 -522517588252495
18 7065091754607762
19 338212264324430255

[0,1,2,-1,-28,-115,230,7051,43080,-172327,
 -6067382,-47080361,309697324,12289126629,
 114505019694,-1105109602973,-48948382516592,
 -522517588252495,7065091754607762,
 338212264324430255]

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Last modified April 25 12:15 EDT 2024. Contains 371969 sequences. (Running on oeis4.)