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, 7600000000000000, 76000000000000000, 760000000000000000, 7600000000000000000, 76000000000000000000

Offset

1,2

Comments

Generated with DrScheme.

Links

Table of n, a(n) for n=1..20.

Jonathan 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

Author

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

Extensions

a(16)-a(20) from Pontus von Brömssen, May 01 2024

Status

approved