login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A136946
Numbers k such that k and k^2 use only the digits 0, 3, 6 and 9.
1
0, 3, 6, 30, 60, 63, 300, 306, 600, 603, 630, 3000, 3006, 3060, 6000, 6003, 6030, 6300, 30000, 30006, 30060, 30600, 60000, 60003, 60030, 60300, 63000, 300000, 300006, 300060, 300600, 306000, 600000, 600003, 600030, 600300, 603000, 630000, 3000000, 3000006, 3000060, 3000600, 3006000, 3060000, 6000000, 6000003, 6000030, 6000300, 6003000
OFFSET
1,2
COMMENTS
Generated with DrScheme.
LINKS
J. Wellons, Tables of Shared Digits [archived]
EXAMPLE
969360630000000^2 = 939660030993996900000000000000.
CROSSREFS
Sequence in context: A136894 A136939 A136944 * A125521 A211168 A355989
KEYWORD
base,nonn
AUTHOR
Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008
STATUS
approved