

A053968


Numbers k such that k^2 contains only digits {5,6,7}.


1




OFFSET

1,1


LINKS

Table of n, a(n) for n=1..10.
P. De Geest, Squares containing at most three distinct digits, Index entries for related sequences
Author?, Source(txt)
H. Mishima, Squares consisted of 3 different digits


CROSSREFS

Cf. A053969.
Sequence in context: A053680 A260251 A295007 * A336237 A058627 A286130
Adjacent sequences: A053965 A053966 A053967 * A053969 A053970 A053971


KEYWORD

nonn,base,more


AUTHOR

Patrick De Geest, Mar 15 2000


EXTENSIONS

More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 03 2005
Two more terms from Jon E. Schoenfield, Sep 04 2006
Three more terms from Mishima's website added by Max Alekseyev, May 02 2011


STATUS

approved



