cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A068654 Prime numbers such that every cyclic permutation (other than the number itself) is composite.

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%I A068654 #6 Dec 05 2013 19:55:12
%S A068654 19,23,29,41,43,47,53,59,61,67,83,89,109,137,139,151,167,179,193,211,
%T A068654 223,227,229,233,239,241,251,257,263,269,281,283,293,347,349,353,383,
%U A068654 389,401,409,421,431,433,439,443,449,457,461,463,467,487,499,503,509
%N A068654 Prime numbers such that every cyclic permutation (other than the number itself) is composite.
%e A068654 167 is a member as the two cyclic permutations other than the number itself i.e. 671 and 716 are composite.
%t A068654 Select[Prime[Range[100]],Union[PrimeQ[FromDigits/@Table[ RotateRight[ IntegerDigits[#],i],{i,IntegerLength[#]-1}]]]=={False}&] (* _Harvey P. Dale_, Dec 08 2012 *)
%Y A068654 Cf. A003459, A068652, A068653.
%K A068654 base,nonn
%O A068654 1,1
%A A068654 _Amarnath Murthy_, Feb 28 2002
%E A068654 Corrected and extended by Larry Reeves (larryr(AT)acm.org), Jun 21 2002