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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 (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

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

Adjacent sequences:  A137027 A137028 A137029 * A137031 A137032 A137033

KEYWORD

base,nonn

AUTHOR

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

STATUS

approved

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Last modified January 19 13:56 EST 2022. Contains 350466 sequences. (Running on oeis4.)