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A137017 Numbers k such that k and k^2 use only the digits 1, 2, 6 and 9. 0
1, 11, 96, 1619, 126969 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Generated with DrScheme.

No additional terms through 9999999999. - Harvey P. Dale, Mar 31 2014

LINKS

Table of n, a(n) for n=1..5.

J. Wellons, Tables of Shared Digits

EXAMPLE

126969^2 = 16121126961.

MATHEMATICA

Flatten[Table[Select[FromDigits/@Tuples[{1, 2, 6, 9}, i], Total[ Table[ DigitCount[ #^2, 10, n], {n, {3, 4, 5, 7, 8, 0}}]]==0&], {i, 10}]] (* Harvey P. Dale, Mar 31 2014 *)

CROSSREFS

Sequence in context: A294724 A115351 A154997 * A133833 A142260 A016140

Adjacent sequences:  A137014 A137015 A137016 * A137018 A137019 A137020

KEYWORD

base,nonn

AUTHOR

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

STATUS

approved

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Last modified September 26 06:16 EDT 2021. Contains 347664 sequences. (Running on oeis4.)