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

26, 526, 1636345826, 512130136076, 150573163864701424

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. A058462.

Sequence in context: A163201 A205990 A230247 * A323492 A265461 A257518

Adjacent sequences: A058458 A058459 A058460 * A058462 A058463 A058464

Keyword

nonn,base,hard,more

Author

Patrick De Geest, Nov 15 2000

Extensions

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

Status

approved