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.

A216061 Primes p such that p^3 + p + 1 is prime.

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%I A216061 #23 Sep 08 2022 08:46:03
%S A216061 2,3,5,17,29,41,53,71,83,131,179,191,239,263,311,389,491,509,557,569,
%T A216061 593,653,701,719,743,797,821,863,887,953,971,977,1019,1049,1097,1109,
%U A216061 1277,1301,1319,1373,1427,1481,1523,1559,1601,1607,1613,1667,1787,1823
%N A216061 Primes p such that p^3 + p + 1 is prime.
%H A216061 Alois P. Heinz, <a href="/A216061/b216061.txt">Table of n, a(n) for n = 1..1000</a>
%p A216061 A := {}; for n to 1000 do p := ithprime(n); if isprime(p^3+p+1) then A := `union`(A, {p}) end if end do; A := A
%t A216061 Select[Prime[Range[400]], PrimeQ[#^3 + # + 1] &] (* _Bruno Berselli_, Sep 01 2012 *)
%o A216061 (Magma) [p: p in PrimesUpTo(2000) | IsPrime(p^3+p+1)]; // _Bruno Berselli_, Sep 01 2012
%Y A216061 Cf. A053182.
%Y A216061 Subsequence of A045309.
%K A216061 nonn,easy
%O A216061 1,1
%A A216061 _César Eliud Lozada_, Aug 31 2012