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A187820 as a simple table

n a(n)
1 1
2 1
3 3
4 12
5 62
6 377
7 2585
8 19497
9 159113
10 1389122
11 12868421
12 125721997
13 1289307566
14 13827494435
15 154617546534
16 1798091282057
17 21700908011943
18 271305769072192
19 3507957527328398
20 46842455163101344
21 645137348798871851
22 9153330597244491848
23 133643964236921732563

[1,1,3,12,62,377,2585,19497,159113,1389122,
 12868421,125721997,1289307566,13827494435,
 154617546534,1798091282057,21700908011943,
 271305769072192,3507957527328398,
 46842455163101344,645137348798871851,
 9153330597244491848,133643964236921732563]

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Last modified April 17 21:22 EDT 2024. Contains 371767 sequences. (Running on oeis4.)