OFFSET
0,1
COMMENTS
This number is the inverse of the number whose decimal expansion is A136319. It is also the latter number minus phi. - Geoffrey Caveney, Apr 18 2014
FORMULA
Repeat s = s + phi; s=1/s. The initial value of s is irrelevant.
Equals (sqrt(5+phi)-phi)/2, where phi = A001622. - R. J. Mathar, Sep 15 2012
EXAMPLE
1
------
phi + 1
.... ------
.... phi + 1
......... -------
......... phi + etc
Equals 0.477259996...
PROG
(PARI) ?\p 2000 ?f(n) = phi=(sqrt(5)+1)/2; s=0; for(x=1, n, s=s+phi; s=1/s); print(s)
CROSSREFS
KEYWORD
AUTHOR
Cino Hilliard, Aug 03 2003
STATUS
approved