OFFSET
1,1
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
MATHEMATICA
Select[Prime[Range[3, 150]], DivisorSigma[1, #-6]>#&] (* Harvey P. Dale, Jul 01 2017 *)
PROG
(PARI) isok(p) = p > 6 && isprime(p) && sigma(p-6) > p; \\ Amiram Eldar, Apr 24 2025
CROSSREFS
KEYWORD
nonn
AUTHOR
Benoit Cloitre, Feb 08 2002
STATUS
approved
