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A320616 as a simple table

n a(n)
3 3
4 18
5 118
6 878
7 7224
8 65514
9 652446
10 7092672
11 83679936
12 1065839544
13 14586155400
14 213544496760
15 3331500035160
16 55190744651520
17 967799429431920
18 17911992891306240
19 348981340420308960
20 7140367412382592080
21 153090240159322655280
22 3432492956469166894080

[3,18,118,878,7224,65514,652446,7092672,83679936,
 1065839544,14586155400,213544496760,3331500035160,
 55190744651520,967799429431920,17911992891306240,
 348981340420308960,7140367412382592080,
 153090240159322655280,3432492956469166894080]

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Last modified August 4 13:17 EDT 2024. Contains 374921 sequences. (Running on oeis4.)