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Search: id:A067478
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| A067478 |
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Smallest n-digit square starting with 8. |
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+0
3
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| 9, 81, 841, 8100, 80089, 801025, 8003241, 80013025, 800041225, 8000050249, 80000162649, 800001447184, 8000004951184, 80000001609984, 800000042569984, 8000000160998400, 80000000297200369, 800000000000150481
(list; graph; listen)
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OFFSET
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2,1
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FORMULA
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a[n]=ceil(sqrt(8*10^n)))^2 - Sascha Kurz (sascha.kurz(AT)uni-bayreuth.de), Mar 18 2002
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MATHEMATICA
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nS[n_] := Module[{lr = Floor[Sqrt[n]]}, If[lr^2==n, lr^2, (lr + 1)^2]]; Table[nS[8 10^i], {i, 0, 20}]
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CROSSREFS
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Cf. A035075 (roots), A045791, A067479 (2..9).
Sequence in context: A137062 A001514 A077364 this_sequence A077486 A113361 A068881
Adjacent sequences: A067475 A067476 A067477 this_sequence A067479 A067480 A067481
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KEYWORD
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base,easy,nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Feb 09 2002
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EXTENSIONS
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More terms from Harvey P. Dale (hpd1(AT)nyu.edu), Feb 17 2002
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