A053897 Squares composed of digits {1,4,5}.

1, 4, 144, 441, 1444, 115111441, 1551414544, 441411414544, 115414455444544, 41155551514151451441, 114515541511151545444, 5115115541555411411554441, 5411144145154411455544144144

Offset

1,2

Links

Table of n, a(n) for n=1..13.

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

Hisanori Mishima, Sporadic tridigital solutions.

Author?, Source(txt)

Formula

a(n) = A053896(n)^2. - Elmo R. Oliveira, Jul 18 2025

Crossrefs

Cf. A053896.

Sequence in context: A053899 A058414 A053891 * A017294 A273698 A134631

Adjacent sequences: A053894 A053895 A053896 * A053898 A053899 A053900

Keyword

nonn,base,more

Author

Patrick De Geest, Mar 15 2000

Extensions

More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 04 2005

Two more terms from Jon E. Schoenfield, Sep 03 2006

Status

approved