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A290754 as a simple table

n a(n)
1 12
2 228
3 4020
4 65040
5 1047540
6 16768860
7 268419060
8 4294836480
9 68719210560
10 1099509531420
11 17592181850100
12 281474943095280
13 4503599560261620
14 72057593501073180
15 1152921503532053580
16 18446744065119682560
17 295147905162172956660
18 4722366482732189753280

[12,228,4020,65040,1047540,16768860,268419060,
 4294836480,68719210560,1099509531420,
 17592181850100,281474943095280,4503599560261620,
 72057593501073180,1152921503532053580,
 18446744065119682560,295147905162172956660,
 4722366482732189753280]

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Last modified April 24 10:11 EDT 2024. Contains 371935 sequences. (Running on oeis4.)