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A112503 as a simple table

n a(n)
0 1
1 20
2 225
3 1882
4 13070
5 79872
6 444902
7 2311828
8 11388999
9 53820068
10 246112783
11 1096379070
12 4782801180
13 20515294320
14 86808499020
15 363304109640
16 1507010836605
17 6206407299540
18 25412183425165
19 103563957886370

[1,20,225,1882,13070,79872,444902,2311828,
 11388999,53820068,246112783,1096379070,4782801180,
 20515294320,86808499020,363304109640,
 1507010836605,6206407299540,25412183425165,
 103563957886370]

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Last modified May 17 19:53 EDT 2024. Contains 372607 sequences. (Running on oeis4.)