OFFSET
1,1
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
MATHEMATICA
Select[Range[2, 4000, 2], !PrimeQ[#/2] && DivisorSigma[1, # + 1] > DivisorSigma[1, #] &] (* Amiram Eldar, Apr 29 2022 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Benoit Cloitre, Feb 08 2002
STATUS
approved