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A054031
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Numbers n such that n^2 contains exactly 3 different digits.
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8
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13, 14, 16, 17, 18, 19, 23, 24, 25, 27, 28, 29, 31, 34, 35, 39, 40, 41, 45, 46, 47, 50, 56, 58, 60, 62, 63, 65, 67, 68, 70, 75, 76, 77, 80, 81, 83, 85, 90, 91, 92, 94, 97, 101, 102, 107, 108, 110, 111, 119, 120, 121, 122, 129, 131, 141, 149, 150, 162, 165, 168, 188
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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MAPLE
| f := []; for i from 0 to 200 do if nops({op(convert(i^2, base, 10))})=3 then f := [op(f), i] fi; od; f;
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CROSSREFS
| Cf. A016069, A054032, A054033, A054034, A054035, A054036, A054037, A054038, A054039.
Sequence in context: A106007 A048037 A171492 * A060275 A083984 A079495
Adjacent sequences: A054028 A054029 A054030 * A054032 A054033 A054034
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KEYWORD
| nonn,base
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AUTHOR
| Asher Auel (asher.auel(AT)reed.edu) Feb 29 2000
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