A053895 Squares composed of digits {1,3,8}.

1, 81, 11881, 13338133883881, 81838388131883313833383381811133318888113813881

Offset

1,2

Links

Table of n, a(n) for n=1..5.

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

H. Mishima Squares consisted of 3 different digits

Formula

a(n) = A053894(n)^2.

Crossrefs

Cf. A053894.

Sequence in context: A185847 A058422 A053913 * A053905 A184690 A143005

Adjacent sequences: A053892 A053893 A053894 * A053896 A053897 A053898

Keyword

nonn,base,more

Author

Patrick De Geest, Mar 15 2000

Extensions

One more term from Mishima's webpage added by Max Alekseyev, Jun 17 2011

Status

approved