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A207857 as a simple table

n a(n)
1 40
2 1600
3 13230
4 178088
5 2047902
6 24999522
7 298294290
8 3584335104
9 42968437070
10 515629329072
11 6185911022388
12 74218338931926
13 890410143869610
14 10682416271430446
15 128158495357747566
16 1537548202464027744

[40,1600,13230,178088,2047902,24999522,298294290,
 3584335104,42968437070,515629329072,6185911022388,
 74218338931926,890410143869610,10682416271430446,
 128158495357747566,1537548202464027744]

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Last modified September 26 06:16 EDT 2021. Contains 347664 sequences. (Running on oeis4.)