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A136865 Numbers n such that n and the square of n use only the digits 0, 1, 4, 7 and 9. +0
2
0, 1, 7, 10, 70, 97, 100, 107, 700, 701, 970, 997, 1000, 1007, 1049, 1070, 1071, 7000, 7001, 7010, 7071, 9700, 9701, 9970, 9997, 10000, 10007, 10070, 10097, 10490, 10700, 10710, 14107, 70000, 70001, 70010, 70100, 70107, 70499, 70710, 97000, 97001, 97010, 99700, 99970, 99997, 100000, 100007, 100070, 100097, 100499, 100700, 100970, 104900, 107000 (list; graph; listen)
OFFSET

1,3

COMMENT

Generated with DrScheme

LINKS

Jonathan Wellons, Table of n, a(n) for n=1..1020

J. Wellons, Tables of Shared Digits

EXAMPLE

4140170401071^2 = 17141010949904404997947041

CROSSREFS

Adjacent sequences: A136862 A136863 A136864 this_sequence A136866 A136867 A136868

Sequence in context: A038276 A097187 A115904 this_sequence A123797 A123805 A124200

KEYWORD

base,nonn

AUTHOR

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

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Last modified January 7 17:35 EST 2009. Contains 152824 sequences.


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