cp's OEIS Frontend

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.

A111413 a(n) = f(f(n+1))-f(f(n)), where f(m) = Euler(m) = A000111(m).

Table of values

n a(n)
0 0
1 0
2 0
3 15
4 19391512129
5 703237958001393736999896827714634659411015090272684227831001142371615151

List of values

[0, 0, 0, 15, 19391512129, 703237958001393736999896827714634659411015090272684227831001142371615151]

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

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