A136961 - OEIS

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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

(list; graph; refs; listen; history; text; internal format)

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