A058450 Squares composed of digits {0,6,7}, not ending with zero.

676, 67667076, 670066667776, 66007077776676, 676670006660660066767076066770670707776

Offset: 1

Author

Patrick De Geest, Nov 15 2000

Keywords

• nonn
• base
• hard
• more

Links

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

Crossrefs

Cf. A058449.

Extensions

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