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.

A243079 Numbers n such that A = n - DigitProd(n) is divisible by the largest power of 10 <= A.

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%I A243079 #21 Jul 10 2014 14:20:31
%S A243079 1,2,3,4,5,6,7,8,9,11,12,13,14,15,16,17,18,19,35,55,62,64,66,68,75,95,
%T A243079 236,315,324,575,612,828,935,944,4384,5175,7688,7735,8128,8672,9135,
%U A243079 9144,9575,91575
%N A243079 Numbers n such that A = n - DigitProd(n) is divisible by the largest power of 10 <= A.
%C A243079 Trivially numbers in A037124 satisfy this but are not contained in this sequence.
%e A243079 35-3*5 = 20 is divisible by the highest power of 10 below it (10^1). So 20 is a member of this sequence.
%o A243079 (PARI) DP(n)={p=1; d=digits(n); for(i=1, #d, p*=d[i]); return(p)}
%o A243079 for(k=1,10^7,if(n%10!=0&&(n-DP(n))%(10^(#Str(n-DP(n))-1))==0,print1(n,", ")))
%Y A243079 Cf. A055642, A037124, A242948.
%K A243079 nonn,base,fini,full
%O A243079 1,2
%A A243079 _Derek Orr_, May 30 2014