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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.

A027872 a(n) = Product_{i=1..n} (5^i - 1).

Table of values

n a(n)
0 1
1 4
2 96
3 11904
4 7428096
5 23205371904
6 362560730628096
7 28324694519589371904
8 11064305472020078810628096
9 21609960560733744406929189371904
10 211034749490954911990173458030810628096

List of values

[1, 4, 96, 11904, 7428096, 23205371904, 362560730628096, 28324694519589371904, 11064305472020078810628096, 21609960560733744406929189371904, 211034749490954911990173458030810628096]

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

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