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A185634 as a simple table

n a(n)
2 1
3 2
4 21
5 204
6 2605
7 39990
8 720601
9 14913080
10 348678441
11 9090909090
12 261535698061
13 8230246567620
14 281241170407093
15 10371206370520814
16 410525522232055665
17 17361641481138401520
18 781282469559318055057
19 37275544492386193492506
20 1879498672877297909667781

[1,2,21,204,2605,39990,720601,14913080,348678441,
 9090909090,261535698061,8230246567620,
 281241170407093,10371206370520814,
 410525522232055665,17361641481138401520,
 781282469559318055057,37275544492386193492506,
 1879498672877297909667781]

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Last modified February 23 21:40 EST 2024. Contains 370288 sequences. (Running on oeis4.)