A136940 Numbers k such that k and k^2 use only the digits 0, 3, 5, 7 and 9.

0, 3, 30, 300, 3000, 5753, 9503, 30000, 57530, 75503, 95030, 300000, 550503, 575300, 755030, 950300, 995003, 3000000, 5505030, 5753000, 7550300, 9503000, 9950030, 30000000, 30909503, 55050300, 57530000, 73073753, 75503000, 95030000, 95390753, 99500300, 99950003, 300000000, 309095030, 550503000, 575300000, 577907753, 730737530

Offset

1,2

Comments

Generated with DrScheme.

Links

Jonathan Wellons, Table of n, a(n) for n = 1..259

J. Wellons, Tables of Shared Digits [archived]

Example

579309390909503^2 = 335599370395939357093535707009.

Crossrefs

Sequence in context: A144282 A299866 A136941 * A136929 A136935 A136942

Adjacent sequences: A136937 A136938 A136939 * A136941 A136942 A136943

Keyword

base,nonn,changed

Author

Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008

Status

approved