OFFSET
1,2
COMMENTS
LINKS
EXAMPLE
a(3) = 57960 because (1/1) + (1/2) + (1/3) + (1/4) + (1/5) + (1/6) + (1/7) + (1/8) + (1/9) + (1/10) + (1/15) + (1/230) + (1/57960) = 3 and the final and greatest denominator is 57960. (Sequence A140335 has the full list of denominators.)
PROG
(PARI) a(n)={my(s=n, k=1); while(s>1/k, s-=1/k; k++); while(s!=0, k=ceil(1/s); s-=1/k); k} \\ Andrew Howroyd, Sep 01 2019
(Python)
from sympy import egyptian_fraction
def A323725(n): return egyptian_fraction(n)[-1] # Pontus von Brömssen, Aug 03 2020
CROSSREFS
KEYWORD
nonn
AUTHOR
AJ Tatum, Aug 31 2019
STATUS
approved