A137082 Numbers k such that k and k^2 use only the digits 2, 3, 5, 6 and 9.

3, 5, 6, 23, 25, 63, 235, 236, 256, 2323, 2365, 2523, 22925, 23566, 25565, 26335, 59635, 62925, 232236, 236565, 252236, 255663, 263235, 626335, 996963, 2293325, 2353656, 2359923, 2555256, 2556663, 2556665, 2633235, 2639236, 5996963, 6263335, 6295236, 9626335, 9626366, 9639635, 9966925, 9996963, 22955665, 23522235, 23566925, 23592235

Offset

1,1

Comments

Generated with DrScheme.

Links

Jonathan Wellons, Table of n, a(n) for n = 1..388

J. Wellons, Tables of Shared Digits [archived]

Example

596365936252535^2 = 355652329922362639359293926225.

Mathematica

nsnQ[n_]:=SubsetQ[{2, 3, 5, 6, 9}, IntegerDigits[n^2]]; Table[Select[ FromDigits/@ Tuples[{2, 3, 5, 6, 9}, n], nsnQ], {n, 8}]//Flatten (* Harvey P. Dale, Jun 24 2018 *)

Crossrefs

Sequence in context: A276704 A103022 A086189 * A242501 A099414 A004785

Adjacent sequences: A137079 A137080 A137081 * A137083 A137084 A137085

Keyword

base,nonn

Author

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

Status

approved