0,1
P. De Geest, Squares containing at most three distinct digits, Index entries for related sequences
Cf. A053966.
Adjacent sequences: A053964 A053965 A053966 this_sequence A053968 A053969 A053970
Sequence in context: A110481 A030088 A081069 this_sequence A028945 A082875 A086541
nonn,base
Patrick De Geest (pdg(AT)worldofnumbers.com), Mar 15 2000.
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