%I #4 Sep 16 2015 04:41:37
%S 0,1,2,6,8,10,11,12,13,14,15,17,20,21,22,24,26,27,28,29,30,31,32,35,
%T 36,37,39,40,41,42,44,46,47,50,51,52,53,55,57,60,61,62,63,64,65,67,68,
%U 69,70,71,72,73,74,75,76,78,80,81,82,83,85,87,88,89,90,91,92,94,95,96,97
%N Slowest increasing sequence that starts with 0 and has property that multiplying two consecutive terms gives a number which shares at least one digit with one of the terms.
%C Terms computed by _Stefan Steinerberger_.
%t a = {0}; For[n = 1, n <= 100, n++, If[Length[Intersection[IntegerDigits[n*a[[ -1]]], Union[IntegerDigits[n], IntegerDigits[a[[ -1]]]]]] != 0, AppendTo[a, n]]]; a
%K base,easy,nonn
%O 0,3
%A _Eric Angelini_, May 29 2007
|