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Table of n, a(n) for n=1..26.
P. De Geest, Squares containing at most three distinct digits, Index entries for related sequences
Sequence in context: A057959 A220168 A227397 * A054464 A002101 A241231
Adjacent sequences: A053899 A053900 A053901 * A053903 A053904 A053905
Patrick De Geest, Mar 15 2000.
More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 03 2005