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A331947 as a simple table

n a(n)
1 2
2 12
3 20
4 68
5 90
6 98
7 132
8 252
9 318
10 362
11 398
12 1722
13 259668
14 315180
15 452042 

[2,12,20,68,90,98,132,252,318,362,398,1722,259668,
 315180,452042]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)