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A279541 as a simple table

n a(n)
1 1
2 5
3 25
4 35
5 175
6 385
7 1225
8 1925
9 9625
10 13475
11 48125
12 55825
13 148225
14 279125
15 390775
16 1395625
17 1730575
18 4298525
19 8652875
20 12114025
21 43264375
22 60570125
23 133254275
24 302850625
25 423990875
26 642043325
27 2119954375

[1,5,25,35,175,385,1225,1925,9625,13475,48125,
 55825,148225,279125,390775,1395625,1730575,
 4298525,8652875,12114025,43264375,60570125,
 133254275,302850625,423990875,642043325,
 2119954375]

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Last modified July 31 05:53 EDT 2021. Contains 346367 sequences. (Running on oeis4.)