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A332317 as a simple table

n a(n)
1 1
2 5
3 130
4 390
5 585
6 3250
7 31980
8 133250
9 223860
10 799500
11 7195500
12 13591500
13 122323500
14 258238500
15 394153500
16 405346500
17 910630500
18 1345558500
19 2025133500
20 8195674500

[1,5,130,390,585,3250,31980,133250,223860,799500,
 7195500,13591500,122323500,258238500,394153500,
 405346500,910630500,1345558500,2025133500,
 8195674500]

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Last modified April 19 08:36 EDT 2024. Contains 371782 sequences. (Running on oeis4.)