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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A089989 a(n) = 5^(n^2+2n+1)*Product_{j=1..n} (25^j-1).

Table of values

n a(n)
0 5
1 15000
2 29250000000
3 35703281250000000000
4 27239372138671875000000000000000
5 12988743471794208526611328125000000000000000000
6 3870947187719439049405530095100402832031250000000000000000000000
7 721020100095350865678782984846420731628313660621643066406250000000000000000000000000

List of values

[5, 15000, 29250000000, 35703281250000000000, 27239372138671875000000000000000, 12988743471794208526611328125000000000000000000, 3870947187719439049405530095100402832031250000000000000000000000, 721020100095350865678782984846420731628313660621643066406250000000000000000000000000]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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