OFFSET
1,2
LINKS
Hans Havermann, Table of A093211-A093299
EXAMPLE
a(4) is 774977 because its length-4 substrings (7749, 7497, 4977) are all distinct and divisible by 63 and there is no larger number with this property
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Hans Havermann, Mar 29 2004
STATUS
approved