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A147947 as a simple table

n a(n)
1 1
2 2
3 6
4 24
5 74
6 372
7 1764
8 9076
9 51988
10 292392
11 1967338
12 12930510
13 91859738
14 702084750
15 5271114798
16 46825411464

[1,2,6,24,74,372,1764,9076,51988,292392,1967338,
 12930510,91859738,702084750,5271114798,
 46825411464]

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Last modified April 23 12:27 EDT 2024. Contains 371912 sequences. (Running on oeis4.)