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A009413 as a simple table

n a(n)
0 0
1 1
2 -1
3 5
4 -12
5 69
6 -285
7 1833
8 -11536
9 91689
10 -782865
11 7685325
12 -82339884
13 973147629
14 -12466581309
15 172666976433
16 -2565893101440
17 40742019960785
18 -688062399893505
19 12315242802523797
20 -232832786354392620

[0,1,-1,5,-12,69,-285,1833,-11536,91689,-782865,
 7685325,-82339884,973147629,-12466581309,
 172666976433,-2565893101440,40742019960785,
 -688062399893505,12315242802523797,
 -232832786354392620]

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Last modified March 29 03:51 EDT 2024. Contains 371264 sequences. (Running on oeis4.)