OFFSET
1,1
COMMENTS
LINKS
Nathaniel Johnston, Table of n, a(n) for n = 1..10000
EXAMPLE
a(12) = 7 because the prime factors of 12 and 12+3 = 15 are {2, 3, 5} and the next available prime is 7.
MAPLE
A190911 := proc(n) local k: for k from 3 by 2 do if(gcd(k, n)=1 and gcd(k, n+3)=1)then return k: fi: od: end: seq(A190911(n), n=1..100); # Nathaniel Johnston, May 26 2011
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Jonathan Vos Post, May 26 2011
EXTENSIONS
a(15) corrected by Nathaniel Johnston, May 26 2011
STATUS
approved