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A139009 as a simple table

n a(n)
0 1
1 2
2 3
3 4
4 10
5 29
6 73
7 255
8 1166
9 5371
10 29682
11 210876
12 1671283
13 15280803
14 171861787
15 2259744342
16 34374508575
17 625277335018
18 13461221324518
19 338565697760175
20 10066909617112085
21 354314901636357736
22 14658961195961880848

[1,2,3,4,10,29,73,255,1166,5371,29682,210876,
 1671283,15280803,171861787,2259744342,34374508575,
 625277335018,13461221324518,338565697760175,
 10066909617112085,354314901636357736,
 14658961195961880848]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)