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A137030
Numbers k such that k and k^2 use only the digits 1, 3, 4 and 8.
0
1, 38, 1188, 338841141
OFFSET
1,2
COMMENTS
Generated with DrScheme.
LINKS
EXAMPLE
338841141^2 = 114813318834181881.
MATHEMATICA
Table[Select[FromDigits/@Tuples[{1, 3, 4, 8}, n], Complement[IntegerDigits[#^2], {1, 3, 4, 8}]=={}&], {n, 10}]//Flatten (* Harvey P. Dale, Dec 05 2016 *)
CROSSREFS
Sequence in context: A098612 A268739 A239043 * A027657 A268885 A162858
KEYWORD
base,nonn,more
AUTHOR
Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008
STATUS
approved