A053975 Squares composed of digits {6,8,9}.

9, 6889, 69696, 698896, 9696996, 66699889, 9669968896, 669668898889, 686688996889, 989698666896, 86668968686689, 969896699696888896, 6869996688989986989889, 898889698869898988888689, 969986886696696688968996

Offset

1,1

Links

Table of n, a(n) for n=1..15.

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

Hisanori Mishima, Sporadic tridigital solutions

Formula

a(n) = A053974(n)^2.

Crossrefs

Cf. A053974.

Sequence in context: A349896 A013744 A060761 * A191961 A188965 A367517

Adjacent sequences: A053972 A053973 A053974 * A053976 A053977 A053978

Keyword

nonn,base

Author

Patrick De Geest, Mar 15 2000

Extensions

More terms from Gareth McCaughan (gareth.mccaughan(AT)pobox.com), Jun 11 2004

Status

approved