A136962 Numbers k such that k and k^2 use only the digits 0, 5, 6 and 7.

0, 76, 760, 7600, 76000, 760000, 7600000, 76000000, 760000000, 7600000000, 76000000000, 760000000000, 7600000000000, 76000000000000, 760000000000000

Offset

1,2

Comments

Generated with DrScheme.

Links

Table of n, a(n) for n=1..15.

J. Wellons, Tables of Shared Digits [archived]

Example

760000000000000^2 = 577600000000000000000000000000.

Crossrefs

Sequence in context: A230944 A136963 A136964 * A324626 A137146 A156388

Adjacent sequences: A136959 A136960 A136961 * A136963 A136964 A136965

Keyword

base,nonn,changed

Author

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

Status

approved