|
|
A112904
|
|
a(n) is the least positive integer in base 10 containing n sevens that is divisible by n.
|
|
1
|
|
|
7, 770, 777, 77772, 777770, 7777770, 7777777, 777777776, 777777777, 77777777770, 777777777777, 7777777777776, 77477777777777, 777777777777770, 7777777777777770, 77777777777777776, 177777777777777777
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
LINKS
|
|
|
FORMULA
|
|
|
EXAMPLE
|
a(4) = 77772 because 77772 contains 4 sevens and is divisible by 4.
|
|
CROSSREFS
|
|
|
KEYWORD
|
base,nonn
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|