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A138454 as a simple table

n a(n)
1 16
2 216
3 5000
4 38416
5 585640
6 1599416
7 8018016
8 15638520
9 49252016
10 198038680
11 295526720
12 854617416
13 1582426160
14 2105981416
15 3591445216
16 7385490216
17 14056138760
18 17168842840
19 30146077016
20 42691624080
21 50435276016

[16,216,5000,38416,585640,1599416,8018016,
 15638520,49252016,198038680,295526720,854617416,
 1582426160,2105981416,3591445216,7385490216,
 14056138760,17168842840,30146077016,42691624080,
 50435276016]

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Last modified October 21 23:34 EDT 2021. Contains 348160 sequences. (Running on oeis4.)