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Primes not expressed in form n<+>2, where operation <+> defined in A206853.
4

%I #23 Feb 01 2014 07:20:52

%S 3,17,41,73,89,97,113,137,193,233,241,257,281,313,337,353,401,409,433,

%T 449,457,521,569,577,593,601,617,641,673,761,769,809,857,881,929,937,

%U 953,977,1009,1033,1049,1097,1129,1153,1193,1201,1217,1249,1289,1297,1321

%N Primes not expressed in form n<+>2, where operation <+> defined in A206853.

%C Trivially every odd prime is expressed in form n<+>1 (cf. A208982).

%C Are these related to A141174, A045390 or A007519? - _R. J. Mathar_, Mar 13 2012

%F For n>=2, a(n) = A007519(n-1). - Vladimir Shevelev, Apr 18 2012

%Y Cf. A205509, A205510, A205511, A205302, A205649, A205533, A122565, A206852, A206853, A206960, A007519, A209554, A182187.

%K nonn,base

%O 1,1

%A _Vladimir Shevelev_ and _Peter J. C. Moses_, Mar 10 2012