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A092256 Nonprimes of form 6k+5. 3

%I

%S 35,65,77,95,119,125,143,155,161,185,203,209,215,221,245,275,287,299,

%T 305,323,329,335,341,365,371,377,395,407,413,425,437,455,473,485,497,

%U 515,527,533,539,545,551,575,581,605,611,623,629,635,665,671,689,695

%N Nonprimes of form 6k+5.

%H Nathaniel Johnston, <a href="/A092256/b092256.txt">Table of n, a(n) for n = 1..10000</a>

%p for k from 0 to 100 do if(not isprime(6*k+5))then printf("%d, ",6*k+5); fi: od: # _Nathaniel Johnston_, May 18 2011

%t Do[If[ !PrimeQ[n]&&Equal[Mod[n, 6], 5 ], Print[n]], {n, 1, 1000}]

%t Select[6*Range[150]+5,!PrimeQ[#]&] (* _Harvey P. Dale_, Jan 23 2012 *)

%Y Cf. A091113, A091300.

%K easy,nonn

%O 1,1

%A _Labos Elemer_, Feb 24 2004

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Last modified March 28 11:49 EDT 2020. Contains 333083 sequences. (Running on oeis4.)