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A147942 as a simple table

n a(n)
1 1
2 2
3 6
4 16
5 74
6 304
7 1424
8 7946
9 39908
10 231442
11 1351720
12 9447558
13 67300148
14 488187450
15 4266438488
16 36066619444

[1,2,6,16,74,304,1424,7946,39908,231442,1351720,
 9447558,67300148,488187450,4266438488,36066619444]

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Last modified May 19 18:35 EDT 2022. Contains 353847 sequences. (Running on oeis4.)