1,1

Iterates diverge for all n except n>2 in A005248.

K. S. Stolarsky, A prelude to the 3x+1 problem, J. Differ. Equations Appl. 4 (1998), no. 5, 451-461.

Table of n, a(n) for n=1..76.

f([phi n]) = [phi^2 n]+2; f([phi^2 n]) = n. phi = (1+sqrt(5))/2.

Cf. A005248.

Sequence in context: A140657 A253635 A078975 * A010643 A108906 A193842

Adjacent sequences: A050408 A050409 A050410 * A050412 A050413 A050414

nonn

David W. Wilson

approved