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A320366 as a simple table

n a(n)
1 4
2 32
3 228
4 1612
5 11396
6 80568
7 569608
8 4027076
9 28471056
10 201287740
11 1423085756
12 10061085036
13 71130943216
14 502889207744
15 3555380314548
16 25136210891824
17 177710692555988
18 1256398205148780
19 8882619425973796
20 62799300049416872

[4,32,228,1612,11396,80568,569608,4027076,
 28471056,201287740,1423085756,10061085036,
 71130943216,502889207744,3555380314548,
 25136210891824,177710692555988,1256398205148780,
 8882619425973796,62799300049416872]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)