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A147919 as a simple table

n a(n)
1 1
2 2
3 6
4 16
5 54
6 300
7 1508
8 9488
9 58680
10 406376
11 3576988
12 30865472
13 296769186
14 2879354420
15 30206726508
16 369524784820 

[1,2,6,16,54,300,1508,9488,58680,406376,3576988,
 30865472,296769186,2879354420,30206726508,
 369524784820]

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Last modified April 23 03:30 EDT 2024. Contains 371906 sequences. (Running on oeis4.)