1,2
P. De Geest, Squares containing at most three distinct digits, Index entries for related sequences
Cf. A053906.
Sequence in context: A197429 A204841 A014733 * A036513 A123824 A198283
Adjacent sequences: A053904 A053905 A053906 * A053908 A053909 A053910
nonn,base,more
Patrick De Geest (pdg(AT)worldofnumbers.com), Mar 15 2000.
More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 04 2005