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A291173 as a simple table

n a(n)
1 2
2 42
3 90
4 210
5 630
6 1050
7 1470
8 2310
9 6930
10 16170
11 30030
12 90090
13 150150
14 210210
15 570570
16 690690
17 870870
18 2072070
19 3573570
20 3993990
21 4834830 

[2,42,90,210,630,1050,1470,2310,6930,16170,30030,
 90090,150150,210210,570570,690690,870870,2072070,
 3573570,3993990,4834830]

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Last modified April 19 05:02 EDT 2024. Contains 371782 sequences. (Running on oeis4.)