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Search: id:A062120
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| A062120 |
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Numbers n such that n has sqrt(n) as its middle digits. |
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+0
2
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| 1, 2500, 3600, 62500, 14379264, 57760000, 141376000000, 245495475625, 390625000000, 943971582724, 4482669527413081, 8790937600000000, 31561776563446336, 10235319926865509025
(list; graph; listen)
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OFFSET
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1,2
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MATHEMATICA
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Do[ If[ StringPosition[ ToString[n^2], ToString[n]] [[1, 1]] == (Ceiling[ Log[10, n^2] ] - Ceiling[ Log[10, n] ])/2 + 1, Print[n^2] ], {n, 1, 10^9} ]
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CROSSREFS
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A062120 = A062118^2.
Sequence in context: A124594 A003917 A131523 this_sequence A120408 A031778 A031638
Adjacent sequences: A062117 A062118 A062119 this_sequence A062121 A062122 A062123
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KEYWORD
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nonn,base
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AUTHOR
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Brian Wallace (wallacebrianedward(AT)yahoo.co.uk), Jun 28 2001
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