cp's OEIS Frontend

A356316 Numbers k such that k divides the least j >= k for which k and A276086(j) are coprime, where A276086 is the primorial base exp-function.

%I A356316 #5 Nov 04 2022 11:26:49
%S A356316 1,2,3,4,5,6,7,8,10,11,12,13,14,15,16,17,18,19,22,23,24,26,28,29,30,
%T A356316 31,32,34,35,36,37,38,41,42,43,44,46,47,48,52,53,54,58,59,60,61,62,64,
%U A356316 65,66,67,68,70,71,72,73,74,76,77,78,79,82,83,86,88,89,90,92,94,95,96,97,101,102,103,104,105,106,107
%N A356316 Numbers k such that k divides the least j >= k for which k and A276086(j) are coprime, where A276086 is the primorial base exp-function.
%C A356316 Numbers k such that k divides A356309(k).
%H A356316 <a href="/index/Pri#primorialbase">Index entries for sequences related to primorial base</a>
%o A356316 (PARI) isA356316(n) = A356315(n);
%Y A356316 Cf. A276086, A356309, A356315 (characteristic function), A356317 (complement).
%Y A356316 Disjoint union of A324583 and A356318.
%K A356316 nonn
%O A356316 1,2
%A A356316 _Antti Karttunen_, Nov 04 2022