OFFSET
1,1
LINKS
Cyril Banderier, Florian Luca, Francesco Pappalardi, Numerators of Egyptian fractions, 2019.
EXAMPLE
There are a(2)=3 irreducible fractions with denominator n=2 which are the sums of 3 unit fractions: 1/2 = 1/8 + 1/8 + 1/4 and 3/2 = 1/2 + 1/2 + 1/2, and 5/2 = 1/1 + 1/1 + 1/2.
CROSSREFS
KEYWORD
nonn
AUTHOR
Cyril Banderier, May 25 2019
STATUS
approved