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A223505 as a simple table

n a(n)
1 6
2 19
3 115
4 631
5 3539
6 19759
7 110427
8 617015
9 3447747
10 19265087
11 107648363
12 601511175
13 3361088979
14 18780896143
15 104942791931
16 586393188311
17 3276613524707
18 18308869209055
19 102305227390859
20 571655159691687

[6,19,115,631,3539,19759,110427,617015,3447747,
 19265087,107648363,601511175,3361088979,
 18780896143,104942791931,586393188311,
 3276613524707,18308869209055,102305227390859,
 571655159691687]

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Last modified April 14 00:20 EDT 2024. Contains 371652 sequences. (Running on oeis4.)