A053963 Squares composed of digits {4,7,8}.

4, 484, 784, 7744, 7478444484, 8878844747774884, 84788447488748874848488744487874447844, 484844884744844787448744774844887478884, 48784888484784787487448774777744787448847474447478448784

Offset

1,1

Links

Table of n, a(n) for n=1..9.

Patrick De Geest, Squares containing at most three distinct digits, Index entries for related sequences

H. Mishima Squares consisted of 3 different digits [From Max Alekseyev, Mar 10 2009]

Crossrefs

Cf. A053962.

Sequence in context: A035483 A145570 A053292 * A053941 A027678 A058442

Adjacent sequences: A053960 A053961 A053962 * A053964 A053965 A053966

Keyword

nonn,base

Author

Patrick De Geest, Mar 15 2000

Extensions

Two more terms from Mishima's page added by Max Alekseyev, Mar 10 2009

a(9) from Zhao Hui Du, Mar 10 2024

Status

approved