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A208080 as a simple table

n a(n)
1 15
2 225
3 1785
4 16065
5 139605
6 1228095
7 10751415
8 94313535
9 826627095
10 7247786265
11 63537791985
12 557042877105
13 4883512293885
14 42813574729335
15 375342984092895
16 3290607987017295
17 28848520578042495
18 252912991131598545 

[15,225,1785,16065,139605,1228095,10751415,
 94313535,826627095,7247786265,63537791985,
 557042877105,4883512293885,42813574729335,
 375342984092895,3290607987017295,
 28848520578042495,252912991131598545]

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Last modified May 29 05:33 EDT 2024. Contains 372921 sequences. (Running on oeis4.)