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A137025 Numbers n such that n and the square of n use only the digits 1, 3, 4, 6 and 7. 1
1, 4, 6, 131, 371, 376, 644, 646, 1146, 1771, 3371, 3431, 6146, 11731, 33431, 41731, 61346, 61431, 64631, 116776, 376346, 416431, 641376, 643146, 664631, 3336731, 3337131, 3341771, 3363646, 3371376, 4144474, 6113376, 6113646, 6616376, 6643376, 6644346, 33336731, 33711146, 33714631, 34316376, 117374474, 177136776, 333366431, 333371376 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Generated with DrScheme

LINKS

Jonathan Wellons, Table of n, a(n) for n=1..227

J. Wellons, Tables of Shared Digits

EXAMPLE

643763634136146^2 = 414431616636177643447663733316

CROSSREFS

Sequence in context: A013165 A337466 A052672 * A176493 A070155 A280778

Adjacent sequences:  A137022 A137023 A137024 * A137026 A137027 A137028

KEYWORD

base,nonn

AUTHOR

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

STATUS

approved

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Last modified September 29 20:22 EDT 2020. Contains 337432 sequences. (Running on oeis4.)