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A240478 as a simple table

n a(n)
1 2
2 8
3 25
4 81
5 264
6 857
7 2785
8 9050
9 29407
10 95557
11 310508
12 1008981
13 3278637
14 10653778
15 34618955
16 112492681
17 365539724
18 1187804297
19 3859714705
20 12541963050
21 40754524407
22 132429927677
23 430324878028
24 1398320635661
25 4543777736197

[2,8,25,81,264,857,2785,9050,29407,95557,310508,
 1008981,3278637,10653778,34618955,112492681,
 365539724,1187804297,3859714705,12541963050,
 40754524407,132429927677,430324878028,
 1398320635661,4543777736197]

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Last modified April 17 22:23 EDT 2024. Contains 371767 sequences. (Running on oeis4.)