|
| |
|
|
A093230
|
|
a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 30.
|
|
0
|
|
|
|
0, 900, 99000, 9990000, 999900000, 99999000000, 9999990000000, 999999900000000, 99999999000000000, 9999999990000000000, 999999999900000000000, 99999999999000000000000, 9999999999990000000000000, 999999999999900000000000000, 99999999999999000000000000000
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,2
|
|
|
LINKS
|
Table of n, a(n) for n=1..15.
Hans Havermann, Table of A093211-A093299
|
|
|
EXAMPLE
|
a(3) is 99000 because its length-3 substrings (990, 900, 000) are all distinct and divisible by 30 and there is no larger number with this property.
|
|
|
CROSSREFS
|
Cf. A093211, A093212, ..., A093299, A093798.
Sequence in context: A204316 A283953 A262847 * A093798 A093218 A093215
Adjacent sequences: A093227 A093228 A093229 * A093231 A093232 A093233
|
|
|
KEYWORD
|
base,nonn
|
|
|
AUTHOR
|
Hans Havermann, Mar 28 2004
|
|
|
EXTENSIONS
|
a(11)-a(15) from John Cerkan, Jan 09 2018
|
|
|
STATUS
|
approved
|
| |
|
|
