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.
%I A096867 #13 Apr 10 2021 22:29:00 %S A096867 1,2,3,4,5,6,7,8,9,25,26,27,35,45,55,56,57,58,67,68,77,255,256,257, %T A096867 355,455,555,556,557,558,567,568,577,2555,2556,2557,3555,4555,5555, %U A096867 5556,5557,5558,5567,5568,5577,25555,25556,25557,35555,45555,55555,55556 %N A096867 Records in A068189 (smallest number k such that n = product of nonzero digits of k, or 0 if no such k exists). %C A096867 Numbers n such that A068189(n) is a record are given in A096868. %C A096867 Also records in A280249. - _David A. Corneth_, Apr 08 2021 %H A096867 David A. Corneth, <a href="/A096867/b096867.txt">Table of n, a(n) for n = 1..1707</a> (terms < 10^100) %e A096867 Product of nonzero digits of 257 is 70, for n < 70 the smallest number k such that n = product of nonzero digits of k (or 0 if no such k exists) is at most 256, hence 257 is a record. %Y A096867 Cf. A068189, A096868, A280249. %K A096867 nonn,base %O A096867 1,2 %A A096867 _Klaus Brockhaus_, Jul 13 2004 %E A096867 Incorrect formula removed by _David A. Corneth_, Apr 10 2021