|
|
A136921
|
|
Numbers k such that k and k^2 use only the digits 0, 2, 6 and 7.
|
|
0
|
|
|
0, 26, 260, 2600, 26000, 260000, 2600000, 26000000, 260000000, 2600000000, 26000000000, 260000000000, 2600000000000, 26000000000000, 260000000000000
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,2
|
|
COMMENTS
|
Generated with DrScheme.
|
|
LINKS
|
|
|
EXAMPLE
|
260000000000000^2 = 67600000000000000000000000000.
|
|
CROSSREFS
|
|
|
KEYWORD
|
base,nonn,changed
|
|
AUTHOR
|
Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008
|
|
STATUS
|
approved
|
|
|
|