OFFSET
1,1
COMMENTS
Includes all numbers == 6 or 8 (mod 17). - Robert Israel, Jul 14 2019
LINKS
Robert Israel, Table of n, a(n) for n = 1..10000
MAPLE
remove(t -> isprime(t^5-t-1), [$2..200]); # Robert Israel, Jul 14 2019
MATHEMATICA
Select[Range[100], CompositeQ[#^5-#-1]&] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, May 18 2019 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Vincenzo Librandi, Jun 25 2010
STATUS
approved