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A007282 as a simple table

n a(n)
1 1
2 1
3 1
4 4
5 14
6 74
7 434
8 2876
9 19848
10 143306
11 1062149
12 8058223
13 62259820
14 488630360
15 3886211100
16 31267852668 

[1,1,1,4,14,74,434,2876,19848,143306,1062149,
 8058223,62259820,488630360,3886211100,31267852668]

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Last modified April 18 08:08 EDT 2024. Contains 371769 sequences. (Running on oeis4.)