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A186553 as a simple table

n a(n)
1 0
2 290
3 290
4 2972
5 19016
6 2972
7 168200
8 1279862
9 1279862
10 168200
11 3090668
12 88662978
13 177942264
14 88662978
15 3090668
16 111188198
17 6215002266
18 31976088817
19 31976088817
20 6215002266
21 111188198
22 2585394080
23 435599518160
24 5253540132125

[0,290,290,2972,19016,2972,168200,1279862,1279862,
 168200,3090668,88662978,177942264,88662978,
 3090668,111188198,6215002266,31976088817,
 31976088817,6215002266,111188198,2585394080,
 435599518160,5253540132125]

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Last modified October 25 07:16 EDT 2021. Contains 348239 sequences. (Running on oeis4.)