A030176 Squares composed of digits {4,5,6}.

4, 64, 46656, 56644, 66564, 544644, 45454564, 645566464, 6465446464, 5654446456464, 6444655544646544, 445646655445456656, 45645446454646566544, 46556646565455444544, 566545664646454546564, 6666455655446656664464, 4566565465446655646456464, 6464465564656456445556646564

Offset: 1

Author

Patrick De Geest

Keywords

• nonn
• base

Links

• Zhao Hui Du, Table of n, a(n) for n = 1..24
• Patrick De Geest, Squares containing at most three distinct digits, Index entries for related sequences.
• Hisanori Mishima, Sporadic tridigital solutions.
• Eric Weisstein's World of Mathematics, Square Number.
• Author?, Source, (txt)

Crossrefs

Cf. A030177.

Formula

a(n) = A030177(n)^2. - Elmo R. Oliveira, Jul 16 2025

Extensions

More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 14 2005