A058464 Squares composed of digits {3,4,7}.

4, 7744, 473344, 73344434433347373773443373373444, 447337374477734734334374744437444, 437374344733334774447744773373477443344, 3477773374437343773773333743737447337433344, 73444333373444774773333473377377773344743344373433344

Offset

1,1

Links

Table of n, a(n) for n=1..8.

Patrick De Geest, Index to related sequences.

Hisanori Mishima, Sporadic tridigital solutions.

Formula

a(n) = A058463(n)^2. - Elmo R. Oliveira, Jul 18 2025

Crossrefs

Cf. A058463.

Sequence in context: A371339 A304994 A058440 * A053951 A058460 A115050

Adjacent sequences: A058461 A058462 A058463 * A058465 A058466 A058467

Keyword

nonn,base,more

Author

Patrick De Geest, Nov 15 2000

Extensions

More terms from Mishima's page added by Max Alekseyev, May 30 2009

a(8) from Zhao Hui Du, Mar 10 2024

Missing a(7) inserted by Elmo R. Oliveira, Jul 18 2025

Status

approved