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A047109 as a simple table

n a(n)
0 1
1 1
2 5
3 31
4 151
5 917
6 5619
7 33627
8 210911
9 1326395
10 8366161
11 53441835
12 342477957
13 2203613164
14 14248253995
15 92379163952
16 600644552471
17 3915699367751
18 25579440322831
19 167423682425912
20 1097738520430457
21 7208383257398805

[1,1,5,31,151,917,5619,33627,210911,1326395,
 8366161,53441835,342477957,2203613164,14248253995,
 92379163952,600644552471,3915699367751,
 25579440322831,167423682425912,1097738520430457,
 7208383257398805]

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Last modified March 28 21:54 EDT 2024. Contains 371254 sequences. (Running on oeis4.)