A053969 Squares composed of digits {5,6,7}.

576, 676, 5776, 756767765776, 6667676657766656676, 5677575655766577766776565776, 5757665766657575655756675556, 665556775565576667756557666775667776, 777666657567776675657756675676567555755556, 6565656667556566576676575665776756666556676

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

Formula

a(n) = A053968(n)^2.

Crossrefs

Cf. A053968.

Sequence in context: A199549 A131982 A295017 * A316486 A250775 A109101

Adjacent sequences: A053966 A053967 A053968 * A053970 A053971 A053972

Keyword

nonn,base

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