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.

A082539 Primes p such that there is no prime q, q < p with q+1 dividing p+1.

This page as a plain text file.
%I A082539 #22 Jun 06 2022 05:47:13
%S A082539 2,3,13,37,61,73,109,157,193,229,241,277,313,337,373,397,409,421,457,
%T A082539 541,577,613,661,673,709,733,757,829,877,997,1009,1033,1069,1093,1117,
%U A082539 1129,1153,1201,1213,1237,1249,1297,1321,1381,1453,1489,1597,1621,1657
%N A082539 Primes p such that there is no prime q, q < p with q+1 dividing p+1.
%C A082539 Contains A005383, primes p such that (p+1)/2 is prime. - _T. D. Noe_, Apr 28 2004
%H A082539 T. D. Noe, <a href="/A082539/b082539.txt">Table of n, a(n) for n=1..1000</a>
%F A082539 A084196(A049084(a(n))) = 0.
%t A082539 Select[Prime[Range[260]], AllTrue[Most[Divisors[# + 1]], !PrimeQ[#1 - 1] &] &] (* _Amiram Eldar_, Jun 06 2022 *)
%Y A082539 Cf. A005383, A049084, A084196, A084198, A084200.
%Y A082539 Cf. A092307 (primes p such that there are no primes q, 3 < q < p, such that (q-1) divides (p-1)).
%K A082539 nonn
%O A082539 1,1
%A A082539 _Benoit Cloitre_, May 11 2003
%E A082539 More terms from _Reinhard Zumkeller_, May 18 2003