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A018884 Squares using at most two distinct digits, not ending in 0. 3
1, 4, 9, 16, 25, 36, 49, 64, 81, 121, 144, 225, 441, 484, 676, 1444, 7744, 11881, 29929, 44944, 55225, 69696, 9696996, 6661661161 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

No other terms below 10^41.

The sequence is probably finite.

LINKS

Table of n, a(n) for n=1..24.

Eric Weisstein's World of Mathematics, Square Number.

CROSSREFS

Cf. A016069, A016070, A018885.

Sequence in context: A068867 A111704 A052041 * A050749 A096599 A016073

Adjacent sequences:  A018881 A018882 A018883 * A018885 A018886 A018887

KEYWORD

nonn,base,more,hard

AUTHOR

David W. Wilson

STATUS

approved

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Last modified September 24 04:27 EDT 2017. Contains 292403 sequences.