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A137132 Numbers n such that n and the square of n use only the digits 3, 5, 6, 7 and 8. 1
6, 76, 766, 876, 7666, 8566, 8756, 8876, 57756, 76576, 76666, 85666, 753576, 766576, 766666, 856666, 7587856, 7666576, 7666666, 8566666, 8576576, 8765766, 75336356, 76666576, 76666666, 85666666, 87558876, 88536356, 577558376, 577566756, 577653576, 758733376, 765883566, 766666576, 766666666, 767383566, 856666666, 857768376 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Generated with DrScheme

LINKS

Jonathan Wellons, Table of n, a(n) for n=1..122

J. Wellons, Tables of Shared Digits

EXAMPLE

765738688383876^2 = 586355738887858753336736783376

MATHEMATICA

With[{c={3, 5, 6, 7, 8}}, Select[FromDigits/@Flatten[Table[Tuples[c, n], {n, 9}], 1], SubsetQ[c, IntegerDigits[#^2]]&]] (* Harvey P. Dale, Feb 19 2018 *)

CROSSREFS

Sequence in context: A016090 A181343 A241072 * A053337 A199026 A155643

Adjacent sequences:  A137129 A137130 A137131 * A137133 A137134 A137135

KEYWORD

base,nonn

AUTHOR

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

STATUS

approved

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Last modified December 4 02:40 EST 2021. Contains 349469 sequences. (Running on oeis4.)