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A137044 Numbers n such that n and the square of n use only the digits 1, 3, 8 and 9. 0
1, 3, 9, 1998333891 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Generated with DrScheme

LINKS

Table of n, a(n) for n=1..4.

J. Wellons, Tables of Shared Digits

EXAMPLE

1998333891^2 = 3993338339919199881

MATHEMATICA

With[{c={1, 3, 8, 9}}, Select[Flatten[Table[FromDigits/@Tuples[c, n], {n, 10}]], SubsetQ[c, IntegerDigits[#^2]]&]] (* Harvey P. Dale, Dec 04 2018 *)

CROSSREFS

Sequence in context: A116620 A057269 A113116 * A188545 A212361 A011998

Adjacent sequences:  A137041 A137042 A137043 * A137045 A137046 A137047

KEYWORD

base,nonn

AUTHOR

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

STATUS

approved

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Last modified September 15 08:37 EDT 2019. Contains 327062 sequences. (Running on oeis4.)