A136961 Numbers k such that k and k^2 use only the digits 0, 4, 8 and 9.

0, 999048998, 9990489980, 99904899800, 948898840498, 999048998000, 9488988404980, 9989999048998, 9990489980000, 94889884049800, 99899990489980, 99904899800000, 948898840498000, 998999904899800, 998999999048998, 999048998000000, 999990049899998

Offset

1,2

Comments

Generated with DrScheme.

Links

Table of n, a(n) for n=1..17.

J. Wellons, Tables of Shared Digits [archived]

Example

948898840498^2 = 900409009498448844888004.

Crossrefs

Sequence in context: A234812 A287171 A136953 * A307478 A375380 A100909

Adjacent sequences: A136958 A136959 A136960 * A136962 A136963 A136964

Keyword

base,nonn

Author

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

Status

approved