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.

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A151948 a(n) = tau(sigma(phi(n))).

Original entry on oeis.org

1, 1, 2, 2, 2, 2, 6, 2, 6, 2, 6, 2, 6, 6, 4, 4, 2, 6, 4, 4, 6, 6, 9, 4, 8, 6, 4, 6, 8, 4, 12, 2, 8, 2, 12, 6, 4, 4, 12, 2, 12, 6, 12, 8, 12, 9, 12, 2, 12, 8, 6, 12, 6, 4, 12, 12, 4, 8, 12, 2, 16, 12, 4, 6, 6, 8, 15, 6, 12, 12, 15, 12, 8, 4, 12, 4, 16, 12, 16
Offset: 1

Views

Author

Jaroslav Krizek, Jul 20 2009

Keywords

Links

Crossrefs

Cf. A000005, A000010, A000203, A062068, A062402, A163375.

Programs

Formula

a(n) = A000005(A000203(A000010(n))) = A000005(A062402(n)) = A062068(A000010(n)).
Showing 1-1 of 1 results.

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

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