OFFSET
1,1
COMMENTS
Composite numbers k such that k^120 mod 2310 = 1. - Gary Detlefs, May 02 2012
The asymptotic density of this sequence is 16/77. - Amiram Eldar, Mar 22 2021
LINKS
T. D. Noe, Table of n, a(n) for n = 1..10000
MAPLE
for n from 1 to 1079 do if n^120 mod 2310=1 then print(n) fi od; # Gary Detlefs, May 02 2012
MATHEMATICA
Select[Range[1000], ! PrimeQ[#] && FactorInteger[#][[1, 1]] >= 13 &] (* T. D. Noe, Mar 16 2013 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
EXTENSIONS
913=11*83 deleted by Jean-Marc Rebert, Jul 08 2009
923=13*71 added by Howard Berman (howard_berman(AT)hotmail.com), Jan 22 2010
1 removed by T. D. Noe, Mar 16 2013
STATUS
approved