A053939 Squares composed of digits {3,4,6}.

4, 36, 64, 3364, 4443664, 443433464464, 466363336464, 43346343434436, 46443434463364, 3436643466443664, 33663346434644644, 6344433646663343363344, 444336446434444344644644, 4333643333666334466333636, 4464644636363464333646646666664464, 44444633333463334436443663666646446336

Offset: 1

Author

Patrick De Geest, Mar 15 2000

Keywords

• nonn
• base

Links

• P. De Geest, Squares containing at most three distinct digits, Index entries for related sequences
• Author?, Source (txt)
• Hisanori Mishima, Sporadic tridigital solutions

Crossrefs

Cf. A053938.

Formula

a(n) = A053938(n)^2.

Extensions

More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 03 2005

a(14)-a(16) from Mishima's website, added by Max Alekseyev, Nov 30 2017