A058449 Numbers k such that k^2 contains only digits {0,6,7}, not ending with zero.

26, 8226, 818576, 8124474, 26012881552428213576

Offset

1,1

Links

Table of n, a(n) for n=1..5.

P. De Geest, Index to related sequences

Hisanori Mishima, Sporadic tridigital solutions

Crossrefs

Cf. A058450.

Sequence in context: A232374 A196427 A265979 * A034244 A263222 A265877

Adjacent sequences: A058446 A058447 A058448 * A058450 A058451 A058452

Keyword

nonn,base,hard,more

Author

Patrick De Geest, Nov 15 2000

Extensions

One more term from Mishima's webpage added by Max Alekseyev, Jul 27 2009

Status

approved