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.

A244549 Integers m such that for every integer k>0, m*6^k+1 has a divisor in the set { 7, 13, 31, 37, 97 }.

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%I A244549 #14 Jun 15 2025 18:53:01
%S A244549 174308,188299,702703,1045848,1129794,1615907,1956746,2485141,3162650,
%T A244549 4216218,4786277,4800566,5048170,6275088,6778764,7075837,7276821,
%U A244549 7549807,8468524,8554258,8851331,9616447,9695442,10039882
%N A244549 Integers m such that for every integer k>0, m*6^k+1 has a divisor in the set { 7, 13, 31, 37, 97 }.
%C A244549 For n > 24 a(n) = a(n-24) + 10124569, the first 24 values are in the data.
%C A244549 When the number a(n) has 4 or 9 as the last digit the number  a(n)*6^k-1 is always divisible by 5 and have always a divisor in the set { 7, 13, 31, 37, 97 } for every  k.
%F A244549 For n > 24 a(n) = a(n-24) + 10124569.
%Y A244549 Cf. A076337, A243969, A244070, A244071, A244072, A244073, A244074, A244076, A244211, A244545.
%K A244549 nonn
%O A244549 1,1
%A A244549 _Pierre CAMI_, Jun 29 2014