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A240904 as a simple table

n a(n)
0 1
1 1
2 2
3 4
4 12
5 34
6 118
7 396
8 1508
9 5670
10 22773
11 91337
12 381157
13 1597683
14 6855957
15 29599117
16 129748149
17 572349631
18 2551033858
19 11435935450
20 51651644306
21 234472103672
22 1070461943299
23 4908349870799
24 22607570625188
25 104515879798724
26 484955119433493

[1,1,2,4,12,34,118,396,1508,5670,22773,91337,
 381157,1597683,6855957,29599117,129748149,
 572349631,2551033858,11435935450,51651644306,
 234472103672,1070461943299,4908349870799,
 22607570625188,104515879798724,484955119433493]

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Last modified June 1 06:09 EDT 2024. Contains 373010 sequences. (Running on oeis4.)