A053968 Numbers k such that k^2 contains only digits {5,6,7}.
24, 26, 76, 869924, 2582184474, 75349689155076, 75879284173334, 815816631091556424, 881854102200458483334, 2562353735836753390526
Offset: 1
Links
- 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.
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