OFFSET
1
LINKS
Antti Karttunen, Table of n, a(n) for n = 1..100000
FORMULA
EXAMPLE
PROG
(PARI)
A053669(n) = forprime(p=2, , if(n%p, return(p)));
(PARI) a(n)=forprime(p=5, , if(n%p, return(p%6==5))) \\ Charles R Greathouse IV, Dec 03 2022, corrected by Antti Karttunen, Apr 14 2024
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Antti Karttunen, Dec 03 2022
STATUS
approved