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A129591 as a simple table

n a(n)
1 2
2 5
3 17
4 75
5 407
6 2619
7 19487
8 164571
9 1555007
10 16252779
11 186167087
12 2319025851
13 31210884767
14 451319283339
15 6978220721807
16 114883713395931
17 2006375649873407
18 37048762422505899
19 721210940496319727
20 14761360406583900411
21 316901715602790903647
22 7120504270648900589259

[2,5,17,75,407,2619,19487,164571,1555007,16252779,
 186167087,2319025851,31210884767,451319283339,
 6978220721807,114883713395931,2006375649873407,
 37048762422505899,721210940496319727,
 14761360406583900411,316901715602790903647,
 7120504270648900589259]

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Last modified April 23 05:09 EDT 2024. Contains 371906 sequences. (Running on oeis4.)