A058461 Numbers k such that k^2 contains only digits {2,6,7}.

26, 526, 1636345826, 512130136076, 150573163864701424

Offset: 1

Author

Patrick De Geest, Nov 15 2000

Keywords

• nonn
• base
• hard
• more

Links

• P. De Geest, Index to related sequences
• Hisanori Mishima, Sporadic tridigital solutions

Crossrefs

Cf. A058462.

Extensions

a(5) (from the Mishima web site) added by Max Alekseyev, Jan 11 2007