A136927 Numbers k such that k and k^2 use only the digits 0, 3, 4, 5 and 6.

0, 6, 60, 66, 600, 656, 660, 666, 6000, 6560, 6600, 6660, 6666, 60000, 63566, 65600, 66000, 66600, 66660, 66666, 600000, 603656, 604434, 635660, 656000, 660000, 660656, 666000, 666600, 666660, 666666, 6000000, 6036560, 6044340, 6356600, 6560000, 6600000, 6606560, 6660000, 6666000, 6666600, 6666660, 6666666, 60000000, 60054434, 60365600

Offset

1,2

Comments

Generated with DrScheme.

See also A058429-A058430. - M. F. Hasler, Jan 24 2008

Links

Jonathan Wellons, Table of n, a(n) for n = 1..495

J. Wellons, Tables of Shared Digits [archived]

Example

665605465350506^2 = 443030635504463643353434456036.

Mathematica

With[{c={0, 3, 4, 5, 6}, nn=8}, Select[FromDigits/@Tuples[c, nn], SubsetQ[ c, IntegerDigits[ #^2]]&]] (* Harvey P. Dale, Apr 27 2022 *)

Crossrefs

Sequence in context: A173904 A308413 A204093 * A335202 A061475 A295830

Adjacent sequences: A136924 A136925 A136926 * A136928 A136929 A136930

Keyword

base,nonn

Author

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

Status

approved