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A111154 as a simple table

n a(n)
0 1
1 1
2 5
3 22
4 125
5 948
6 8627
7 86618
8 970649
9 13105048
10 206672615
11 3084750894
12 39005776445
13 972651041372
14 45030832321499
15 489627529809250
16 -65060172242461567
17 100399556385989760
18 378285729309697789679
19 921583343151423434486
20 -2826260367937145199562267

[1,1,5,22,125,948,8627,86618,970649,13105048,
 206672615,3084750894,39005776445,972651041372,
 45030832321499,489627529809250,-65060172242461567,
 100399556385989760,378285729309697789679,
 921583343151423434486,-2826260367937145199562267]

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Last modified April 24 11:21 EDT 2024. Contains 371936 sequences. (Running on oeis4.)