A053913 Squares composed of digits {1,7,8}.

1, 81, 11881, 78881777881, 11187111187877881, 77878887787187881

Offset

1,2

Links

Table of n, a(n) for n=1..6.

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

Crossrefs

Cf. A053912.

Sequence in context: A237027 A185847 A058422 * A053895 A053905 A184690

Adjacent sequences: A053910 A053911 A053912 * A053914 A053915 A053916

Keyword

nonn,base,more

Author

Patrick De Geest, Mar 15 2000

Status

approved