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A130471 as a simple table

n a(n)
1 0
2 2
3 5
4 21
5 106
6 640
7 4527
8 36539
9 331508
10 3338358
11 36946489
12 445724977
13 5821580670
14 81839381996
15 1232102291651
16 19778348559015
17 337223021210632
18 6086161135368034
19 115915940643233613
20 2323409451689985053

[0,2,5,21,106,640,4527,36539,331508,3338358,
 36946489,445724977,5821580670,81839381996,
 1232102291651,19778348559015,337223021210632,
 6086161135368034,115915940643233613,
 2323409451689985053]

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Last modified April 16 08:15 EDT 2024. Contains 371698 sequences. (Running on oeis4.)