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.

A386236 Ratio of the period and the reduced period of the Fibonacci 3-step sequence A000073 mod n.

Original entry on oeis.org

1, 1, 1, 1, 1, 1, 3, 1, 3, 1, 1, 1, 3, 3, 1, 1, 1, 3, 3, 1, 3, 1, 1, 1, 1, 3, 3, 3, 1, 1, 1, 1, 1, 1, 3, 3, 1, 3, 3, 1, 1, 3, 1, 1, 3, 1, 1, 1, 3, 1, 1, 3, 1, 3, 1, 3, 3, 1, 1, 1, 3, 1, 3, 1, 3, 1, 1, 1, 1, 3, 1, 3, 3, 1, 1, 3, 3, 3, 3, 1, 3, 1, 1, 3, 1, 1, 1, 1, 1, 3, 3, 1, 1, 1, 3, 1, 1, 3, 3, 1, 1, 1, 3, 3, 3
Offset: 1

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Author

Peter Munn, Jul 16 2025

Keywords

Comments

The period is A046738(n) and the reduced period is A046737(n).
See also the information in A154754 and A046737.

Crossrefs

The equivalent sequence for Fibonacci numbers is A001176.
Cf. A060839 (differs first at n=31), A154754 (restriction to prime indices).

Formula

a(n) = A046738(n)/A046737(n).