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A052917 as a simple table

n a(n)
0 1
1 3
2 9
3 27
4 82
5 249
6 756
7 2295
8 6967
9 21150
10 64206
11 194913
12 591706
13 1796268
14 5453010
15 16553943
16 50253535
17 152556873
18 463123629
19 1405924830
20 4268028025
21 12956640948
22 39333046473
23 119405064249
24 362483220772
25 1100406303264

[1,3,9,27,82,249,756,2295,6967,21150,64206,194913,
 591706,1796268,5453010,16553943,50253535,
 152556873,463123629,1405924830,4268028025,
 12956640948,39333046473,119405064249,362483220772,
 1100406303264]

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Last modified May 17 10:20 EDT 2024. Contains 372594 sequences. (Running on oeis4.)