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Search: id:A076967
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| A076967 |
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a(1) = 1, a(n+1)= smallest square greater than the n-th partial sum. |
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+0
2
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| 1, 4, 9, 16, 36, 81, 169, 324, 676, 1369, 2704, 5476, 11025, 21904, 44100, 88209, 176400, 352836, 705600, 1411344, 2822400, 5645376, 11296321, 22591009, 45185284, 90364036, 180741136, 361494169, 722964544, 1445976676, 2891965729
(list; graph; listen)
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OFFSET
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1,2
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EXAMPLE
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a(5) = 36 because it is the smallest square greater than the sum of a(1)..a(4) = 30.
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MAPLE
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a[1] := 1:a[2] := 4:for n from 3 to 45 do a[n] := ceil(evalf(sqrt(sum(a[i], i=1..n-1)+1/10^19), 100))^2; od:seq(a[k], k=1..45);
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CROSSREFS
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Cf. A076968.
Sequence in context: A117218 A018228 A138858 this_sequence A111378 A106313 A074101
Adjacent sequences: A076964 A076965 A076966 this_sequence A076968 A076969 A076970
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KEYWORD
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nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Oct 21 2002
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EXTENSIONS
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Corrected and extended by Sascha Kurz (sascha.kurz(AT)uni-bayreuth.de), Jan 22 2003
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