1,1
Author?, Source(txt)
P. De Geest, Squares containing at most three distinct digits, Index entries for related sequences
Cf. A053916.
Adjacent sequences: A053914 A053915 A053916 this_sequence A053918 A053919 A053920
Sequence in context: A027512 A153220 A034226 this_sequence A005832 A075768 A135442
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
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