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A081495 as a simple table

n a(n)
1 1
2 5
3 17
4 55
5 189
6 681
7 2519
8 9451
9 35765
10 136153
11 520695
12 1998745
13 7696467
14 29716025
15 115000947
16 445962899
17 1732525861
18 6741529113
19 26270128535
20 102501265057
21 400411345659
22 1565841089321
23 6129331763923
24 24014172955545
25 94163002754699
26 369507926510401

[1,5,17,55,189,681,2519,9451,35765,136153,520695,
 1998745,7696467,29716025,115000947,445962899,
 1732525861,6741529113,26270128535,102501265057,
 400411345659,1565841089321,6129331763923,
 24014172955545,94163002754699,369507926510401]

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Last modified August 21 08:16 EDT 2024. Contains 375345 sequences. (Running on oeis4.)