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.

A185719 Final prime of the first member of A019518 that is divisible by 43^n.

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%I A185719 #15 Jan 27 2021 10:33:38
%S A185719 211,4051,398261,35912593,5355284791
%N A185719 Final prime of the first member of A019518 that is divisible by 43^n.
%F A185719 a(n) = Min_{ prime(k) | A019518(k) = 0 (mod 43^n) }. - _M. F. Hasler_, Feb 08 2011
%e A185719 The number 2357...199211 is the first term in A019518 divisible by 43^1, therefore a(1) = 211.
%o A185719 (PARI) a(n,m=43)={ my(s=10,p=2); n=Mod(0,m^n); while(n=n*s+p,(p=nextprime(p+1))>s & s*=10) ;p}  \\ _M. F. Hasler_, Feb 08 2011
%Y A185719 Cf. A019518, A183194-A183196, A185656.
%K A185719 nonn,base,more
%O A185719 1,1
%A A185719 _James G. Merickel_, Feb 05 2011