0,2

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

Cf. A053904.

Adjacent sequences: A053902 A053903 A053904 this_sequence A053906 A053907 A053908

Sequence in context: A058422 A053913 A053895 this_sequence A017104 A116007 A013829

nonn,base,more

Patrick De Geest (pdg(AT)worldofnumbers.com), Mar 15 2000.

One more term from Jon E. Schoenfield (jonscho(AT)hiwaay.net), Sep 03 2006