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A177106 Numbers n for which n^5-n-1 is not prime. 0
6, 7, 8, 9, 12, 13, 14, 18, 22, 23, 24, 25, 26, 29, 31, 32, 33, 35, 37, 38, 39, 40, 41, 42, 43, 45, 46, 47, 49, 51, 52, 53, 54, 55, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 73, 74, 76, 77, 78, 79, 80, 81, 83, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 98 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..71.

MATHEMATICA

Select[Range[100], CompositeQ[#^5-#-1]&] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, May 18 2019 *)

CROSSREFS

Cf. A126427 (Numbers n for which n^5-n-1 is prime).

Sequence in context: A005050 A120191 A059983 * A269101 A037366 A047551

Adjacent sequences:  A177103 A177104 A177105 * A177107 A177108 A177109

KEYWORD

nonn

AUTHOR

Vincenzo Librandi, Jun 25 2010

STATUS

approved

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Last modified June 18 07:06 EDT 2019. Contains 324203 sequences. (Running on oeis4.)