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A280764 as a simple table

n a(n)
1 1
2 1
3 1
4 3
5 5
6 15
7 37
8 119
9 365
10 1258
11 4346
12 15773
13 58058
14 219016
15 837482
16 3250770
17 12758359
18 50602829

[1,1,1,3,5,15,37,119,365,1258,4346,15773,58058,
 219016,837482,3250770,12758359,50602829]

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)