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A235249 Fixed point when A001175 (Pisano periods) is iterated with starting value n. 2
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 (list; graph; refs; listen; history; text; internal format)
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
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).
PROG
(Haskell)
a235249 n = if y == n then n else a235249 y where y = a001175 n
CROSSREFS
Sequence in context: A010863 A362116 A217140 * A115028 A099543 A188311
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Jan 15 2014
STATUS
approved

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Last modified February 29 04:26 EST 2024. Contains 370401 sequences. (Running on oeis4.)