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A013215 as a simple table

n a(n)
0 0
1 0
2 -1
3 3
4 -6
5 23
6 -135
7 1036
8 -8820
9 79253
10 -783405
11 8594146
12 -103172454
13 1341998591
14 -18791767995
15 281865510928
16 -4509653027880
17 76663767284201
18 -1379952916274457
19 26219142105604030
20 -524382882377053690

[0,0,-1,3,-6,23,-135,1036,-8820,79253,-783405,
 8594146,-103172454,1341998591,-18791767995,
 281865510928,-4509653027880,76663767284201,
 -1379952916274457,26219142105604030,
 -524382882377053690]

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Last modified July 22 19:56 EDT 2024. Contains 374540 sequences. (Running on oeis4.)