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A027769 as a simple table

n a(n)
8 9
9 100
10 605
11 2640
12 9295
13 28028
14 75075
15 183040
16 413270
17 875160
18 1755182
19 3359200
20 6172530
21 10943240
22 18795370
23 31380096
24 51074375
25 81238300
26 126544275
27 193393200
28 290435145
29 429214500
30 624962325
31 897561600
32 1272714300
33 1783342704
34 2471261100
35 3389158080

[9,100,605,2640,9295,28028,75075,183040,413270,
 875160,1755182,3359200,6172530,10943240,18795370,
 31380096,51074375,81238300,126544275,193393200,
 290435145,429214500,624962325,897561600,
 1272714300,1783342704,2471261100,3389158080]

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Last modified April 18 22:18 EDT 2024. Contains 371782 sequences. (Running on oeis4.)