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A099230 Numbers n such that n*((2^61-1)^3) - 1 and n*((2^61-1)^3) + 1 are twin primes. 2

%I #5 May 16 2016 16:45:26

%S 27258,33192,36318,39288,47478,59778,86940,114000,114462,117852,

%T 156900,157848,182070,212670,220020,229572,248328,281622,290490,

%U 293832,303732,307590,317328,364080,376950,378030,390702,419100,423192,432870,437322,454848,473622

%N Numbers n such that n*((2^61-1)^3) - 1 and n*((2^61-1)^3) + 1 are twin primes.

%t tpQ[n_]:=Module[{c=(2^61-1)^3},AllTrue[n*c+{1,-1},PrimeQ]]; Select[ Range[ 600000],tpQ] (* The program uses the AllTrue function from Mathematica version 10 *) (* _Harvey P. Dale_, May 16 2016 *)

%Y Cf. A099229 A099231.

%K nonn

%O 1,1

%A _Pierre CAMI_, Oct 07 2004

%E Corrected and extended by _Harvey P. Dale_, May 16 2016

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Last modified April 18 21:46 EDT 2024. Contains 371781 sequences. (Running on oeis4.)