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A033143 as a simple table

n a(n)
1 1
2 7
3 49
4 344
5 2408
6 16856
7 117993
8 825951
9 5781657
10 40471600
11 283301200
12 1983108400
13 13881758801
14 97172311607
15 680206181249
16 4761443268744
17 33330102881208
18 233310720168456
19 1633175041179193
20 11432225288254351
21 80025577017780457
22 560179039124463200
23 3921253273871242400

[1,7,49,344,2408,16856,117993,825951,5781657,
 40471600,283301200,1983108400,13881758801,
 97172311607,680206181249,4761443268744,
 33330102881208,233310720168456,1633175041179193,
 11432225288254351,80025577017780457,
 560179039124463200,3921253273871242400]

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Last modified April 16 19:05 EDT 2024. Contains 371751 sequences. (Running on oeis4.)