login
A093276
a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 76.
0
0, 76, 7608, 775244, 99940888, 99909644404, 9999928, 99999964, 999999944, 33333030008888808000, 6666666306088888884080, 666666606660444444404440, 55555550555008888888088800, 5555555055500044444440444000, 111111110000100888888880000800
OFFSET
1,2
EXAMPLE
a(4) is 775244 because its length-4 substrings (7752, 7524, 5244) are all distinct and divisible by 76 and there is no larger number with this property.
CROSSREFS
Cf. A093211, A093212, ..., A093299.
Sequence in context: A234778 A139671 A098606 * A184290 A093238 A185984
KEYWORD
base,nonn
AUTHOR
Hans Havermann, Mar 29 2004
EXTENSIONS
a(11)-a(15) from John Cerkan, Jan 05 2018
STATUS
approved