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A001674 as a simple table

n a(n)
0 1
1 2
2 6
3 15
4 39
5 98
6 248
7 621
8 1558
9 3906
10 9792
11 24546
12 61528
13 154230
14 386597
15 969056
16 2429063
17 6088760
18 15262258
19 38256809
20 95895600
21 240374623
22 602529828
23 1510318305
24 3785806567
25 9489609784
26 23786924200
27 59624976768
28 149457652641
29 374634777972

[1,2,6,15,39,98,248,621,1558,3906,9792,24546,
 61528,154230,386597,969056,2429063,6088760,
 15262258,38256809,95895600,240374623,602529828,
 1510318305,3785806567,9489609784,23786924200,
 59624976768,149457652641,374634777972]

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Last modified April 24 14:23 EDT 2024. Contains 371960 sequences. (Running on oeis4.)