OFFSET
1,2
LINKS
Hans Havermann, Table of A093211-A093299
EXAMPLE
a(3) is 97297 because its length-3 substrings (972, 729, 297) are all distinct and divisible by 27 and there is no larger number with this property
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Hans Havermann, Mar 28 2004
STATUS
approved