A093284 - OEIS

A093284

a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 84.

%I #13 Jan 05 2018 02:56:36

%S 0,84,924,21008400,99960,88880488880,50505008080800,99999984,

%T 999999924,22222221008888888400,99999999960,88888888880488888888880,

%U 55555550505008888888080800,99999999999984,999999999999924,22222222222221008888888888888400,99999999999999960

%N a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 84.

%H Hans Havermann, <a href="/A093211/a093211.txt">Table of A093211-A093299</a>

%e a(4) is 21008400 because its length-4 substrings (2100, 1008, 0084, 0840, 8400) are all distinct and divisible by 84 and there is no larger number with this property.

%Y Cf. A093211, A093212, ..., A093299.

%K base,nonn

%O 1,2

%A _Hans Havermann_, Mar 29 2004

%E a(11)-a(13) from _John Cerkan_, Jul 18 2017

%E a(14)-a(17) from _John Cerkan_, Jan 04 2018