OFFSET
1,4
LINKS
Paolo Xausa, Table of n, a(n) for n = 1..10000
FORMULA
a(n) = A000045(ceiling(log(n+1)/log(2))).
MATHEMATICA
Fibonacci[BitLength[Range[100]]] (* Paolo Xausa, Oct 16 2024 *)
PROG
(PARI) g(n)=if(n<2, 1, if(n%2, g(n-1), 1/g(n/2)+1))
a(n)=denominator(g(n))
(PARI) a(n)=fibonacci(ceil(log(n+1)/log(2)))
CROSSREFS
KEYWORD
frac,nonn,changed
AUTHOR
Benoit Cloitre, Oct 20 2006
STATUS
approved