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A183387 as a simple table

n a(n)
1 1
2 1
3 1
4 4
5 21
6 148
7 2376
8 48868
9 1730057
10 102043638
11 9184967738
12 1385925975119

[1,1,1,4,21,148,2376,48868,1730057,102043638,
 9184967738,1385925975119]

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Last modified April 20 03:59 EDT 2024. Contains 371798 sequences. (Running on oeis4.)