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A204090 as a simple table

n a(n)
0 1
1 2
2 8
3 34
4 134
5 498
6 1786
7 6274
8 21778
9 75074
10 257762
11 882946
12 3020354
13 10323714
14 35270530
15 120467458
16 411394306
17 1404773378
18 4796567042
19 16377245698
20 55916897282
21 190915194882
22 651831179266
23 2225502715906
24 7598365282306
25 25942489251842
26 88573293551618

[1,2,8,34,134,498,1786,6274,21778,75074,257762,
 882946,3020354,10323714,35270530,120467458,
 411394306,1404773378,4796567042,16377245698,
 55916897282,190915194882,651831179266,
 2225502715906,7598365282306,25942489251842,
 88573293551618]

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Last modified May 14 10:41 EDT 2024. Contains 372532 sequences. (Running on oeis4.)