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A205980 as a simple table

n a(n)
1 423
2 1980
3 8004
4 33504
5 140802
6 591336
7 2482596
8 10425528
9 43778766
10 183827574
11 771932004
12 3241441338
13 13611219624
14 57155642244
15 240004267116
16 1007811633786
17 4231945805718
18 17770531374384
19 74620975427586
20 313344031580448

[423,1980,8004,33504,140802,591336,2482596,
 10425528,43778766,183827574,771932004,3241441338,
 13611219624,57155642244,240004267116,
 1007811633786,4231945805718,17770531374384,
 74620975427586,313344031580448]

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Last modified April 25 09:34 EDT 2024. Contains 371967 sequences. (Running on oeis4.)