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A280597 as a simple table

n a(n)
1 1
2 7
3 45
4 302
5 1648
6 7594
7 31152
8 119656
9 446500
10 1658080
11 6210762
12 23592940
13 90908854
14 354490210
15 1394647332
16 5520750316 

[1,7,45,302,1648,7594,31152,119656,446500,1658080,
 6210762,23592940,90908854,354490210,1394647332,
 5520750316]

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Last modified May 7 20:13 EDT 2024. Contains 372317 sequences. (Running on oeis4.)