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A280120 as a simple table

n a(n)
1 2
2 28
3 168
4 1030
5 5802
6 31608
7 171100
8 916768
9 4882310
10 25849910
11 136148532
12 713757316
13 3726366076
14 19383636846
15 100497836596
16 519525218302
17 2678590148146
18 13777413523624
19 70710464750916
20 362190825607320

[2,28,168,1030,5802,31608,171100,916768,4882310,
 25849910,136148532,713757316,3726366076,
 19383636846,100497836596,519525218302,
 2678590148146,13777413523624,70710464750916,
 362190825607320]

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Last modified April 25 10:47 EDT 2024. Contains 371967 sequences. (Running on oeis4.)