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A134288 as a simple table

n a(n)
0 1
1 28
2 336
3 2520
4 13860
5 60984
6 226512
7 736164
8 2147145
9 5725720
10 14158144
11 32821152
12 71954064
13 150233760
14 300467520
15 578399976
16 1075994073
17 1941008916
18 3405278800
19 5824819000
20 9735768900
21 15931258200
22 25565576400
23 40293571500
24 62455035825
25 95315993136

[1,28,336,2520,13860,60984,226512,736164,2147145,
 5725720,14158144,32821152,71954064,150233760,
 300467520,578399976,1075994073,1941008916,
 3405278800,5824819000,9735768900,15931258200,
 25565576400,40293571500,62455035825,95315993136]

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Last modified April 10 06:23 EDT 2020. Contains 333392 sequences. (Running on oeis4.)