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A181999 as a simple table

n a(n)
0 1
1 1
2 3
3 7
4 23
5 69
6 233
7 791
8 2807
9 10089
10 37043
11 137659
12 518009
13 1967409
14 7536249
15 29072599
16 112863479
17 440560817
18 1728178583
19 6808762011
20 26931287867
21 106903064137
22 425723073033
23 1700377605835
24 6809856020309
25 27340764872261
26 110022229116359
27 443683568475459

[1,1,3,7,23,69,233,791,2807,10089,37043,137659,
 518009,1967409,7536249,29072599,112863479,
 440560817,1728178583,6808762011,26931287867,
 106903064137,425723073033,1700377605835,
 6809856020309,27340764872261,110022229116359,
 443683568475459]

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Last modified March 29 00:26 EDT 2024. Contains 371264 sequences. (Running on oeis4.)