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A228115 as a simple table

n a(n)
1 3
2 21
3 143
4 1061
5 8366
6 68932
7 585881
8 5094722
9 45074595
10 404185377
11 3663479699
12 33498077106
13 308548877876
14 2859703657128
15 26646019345842
16 249434445759050
17 2344494354096166
18 22116172789221197
19 209301155352811190
20 1986521422431963549
21 18904049485198437478
22 180323870540071281301
23 1723847795281971132487
24 16512536418951055856540
25 158463448213030472998711

[3,21,143,1061,8366,68932,585881,5094722,45074595,
 404185377,3663479699,33498077106,308548877876,
 2859703657128,26646019345842,249434445759050,
 2344494354096166,22116172789221197,
 209301155352811190,1986521422431963549,
 18904049485198437478,180323870540071281301,
 1723847795281971132487,16512536418951055856540,
 158463448213030472998711]

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Last modified August 12 10:56 EDT 2024. Contains 375092 sequences. (Running on oeis4.)