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A081470 as a simple table

n a(n)
1 2
2 12
3 120
4 1680
5 30240
6 504
7 17297280
8 11880
9 3603600
10 360360
11 28158588057600
12 43680
13 64764752532480000
14 586051200
15 1860480
16 53721360
17 830034394580628357120000
18 96909120
19 4299578163927654889881600000
20 6375600

[2,12,120,1680,30240,504,17297280,11880,3603600,
 360360,28158588057600,43680,64764752532480000,
 586051200,1860480,53721360,
 830034394580628357120000,96909120,
 4299578163927654889881600000,6375600]

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Last modified May 19 02:09 EDT 2024. Contains 372666 sequences. (Running on oeis4.)