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A163580 Primes of the form floor(k+A000217(k-1)*Pi), Pi = A000796, k integer. 1

%I

%S 5,53,151,967,1129,2129,2617,2879,4217,4549,6397,6599,7013,7877,8101,

%T 8329,9029,10007,10259,11839,12391,26881,30707,35257,35729,36683,

%U 37649,41131,41641,49667,50227,56597,63347,71143,75211,79393,82963,102797

%N Primes of the form floor(k+A000217(k-1)*Pi), Pi = A000796, k integer.

%H G. C. Greubel, <a href="/A163580/b163580.txt">Table of n, a(n) for n = 1..1000</a>

%t s=0;lst={};Do[s+=n;p=IntegerPart[s];If[PrimeQ[p],AppendTo[lst,p]],{n, 1,7!,Pi}];lst

%o (PARI) for(n=1,500, m=floor(n + n*(n-1)*Pi/2); if(isprime(m), print1(m, ", "))) \\ _G. C. Greubel_, Jul 28 2017

%Y Cf. A163579

%K nonn

%O 1,1

%A _Vladimir Joseph Stephan Orlovsky_, Jul 31 2009

%E Definition clarified by _R. J. Mathar_, Aug 01 2009

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Last modified March 8 11:34 EST 2021. Contains 341948 sequences. (Running on oeis4.)