A053957 Squares composed of digits {4,6,7}.

4, 64, 676, 7744, 4444667464644, 66667767777644764644, 767646664777467676766464, 6446477674444767467664676, 7446477664767776477464446664464, 64446474444746646444646744666444644

Offset

1,1

Links

Table of n, a(n) for n=1..10.

Author?, Source(txt)

P. De Geest, Squares containing at most three distinct digits, Index entries for related sequences

H. Mishima Squares consisted of 3 different digits [From Max Alekseyev, May 07 2009]

Crossrefs

Cf. A053956.

Sequence in context: A318779 A264567 A264575 * A145244 A268165 A026301

Adjacent sequences: A053954 A053955 A053956 * A053958 A053959 A053960

Keyword

nonn,base

Author

Patrick De Geest, Mar 15 2000

Extensions

More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 04 2005

One more term from Jon E. Schoenfield, Sep 04 2006

Two more terms from Mishima's website added by Max Alekseyev, May 07 2009

Status

approved