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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.

A085866 a(1) = 3, a(n+1) = a(n)*phi(a(n)), where phi(n) is Euler's totient function.

Table of values

n a(n)
1 3
2 6
3 12
4 48
5 768
6 196608
7 12884901888
8 55340232221128654848
9 1020847100762815390390123822295304634368
10 347376267711948586270712955026063723559809953996921692118372752023739388919808

List of values

[3, 6, 12, 48, 768, 196608, 12884901888, 55340232221128654848, 1020847100762815390390123822295304634368, 347376267711948586270712955026063723559809953996921692118372752023739388919808]

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

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