|
|
A093228
|
|
a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 28.
|
|
0
|
|
|
0, 284, 336448, 977280084004, 73500084000, 888748888048888, 7777756000008400000, 7777977200004004000080080000, 777777336000000448000000, 777777977200000080080000004004000000, 77777773500000000084000000000, 888888888748888888888048888888888
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,2
|
|
LINKS
|
|
|
EXAMPLE
|
a(3) is 336448 because its length-3 substrings (336, 364, 644, 448) are all distinct and divisible by 28 and there is no larger number with this property.
|
|
CROSSREFS
|
|
|
KEYWORD
|
base,nonn
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|