A235249 - OEIS

A235249

Fixed point when A001175 (Pisano periods) is iterated with starting value n.

1, 24, 24, 24, 120, 24, 24, 24, 24, 120, 120, 24, 24, 24, 120, 24, 24, 24, 24, 120, 24, 120, 24, 24, 600, 24, 24, 24, 24, 120, 120, 24, 120, 24, 120, 24, 24, 24, 24, 120, 120, 24, 120, 120, 120, 24, 24, 24, 24, 600, 24, 24, 24, 24, 120, 24, 24, 24, 24, 120

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OFFSET

1,2

COMMENTS

Are the powers of 5 (together with 2) the indices of records in this sequence? - Charles R Greathouse IV, Aug 11 2022

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

J. D. Fulton and W. L. Morris, On arithmetical functions related to the Fibonacci numbers, Acta Arithmetica, 16 (1969), 105-110.

Wikipedia, Pisano period

FORMULA

a(n) = 24*5^(A001179(n)-1) for n > 1.

A001175(a(n)) = a(n).