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A121112 as a simple table

n a(n)
1 0
2 5
3 25
4 155
5 1080
6 8085
7 63525
8 516790
9 4315805
10 36786385
11 318736105
12 2799049985
13 24857641900
14 222861398060
15 2014418084860
16 18337277269475
17 167961106916065
18 1546879330598945
19 14315792338559005
20 133065134882334095
21 1241694764334690820
22 11628016504072124555
23 109243880617142972435

[0,5,25,155,1080,8085,63525,516790,4315805,
 36786385,318736105,2799049985,24857641900,
 222861398060,2014418084860,18337277269475,
 167961106916065,1546879330598945,
 14315792338559005,133065134882334095,
 1241694764334690820,11628016504072124555,
 109243880617142972435]

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Last modified January 17 18:02 EST 2020. Contains 330987 sequences. (Running on oeis4.)