A168039 - OEIS

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A168039

Squares closest to 3*n.

1

0, 4, 4, 9, 9, 16, 16, 25, 25, 25, 25, 36, 36, 36, 36, 49, 49, 49, 49, 64, 64, 64, 64, 64, 64, 81, 81, 81, 81, 81, 81, 100, 100, 100, 100, 100, 100, 121, 121, 121, 121, 121, 121, 121, 121, 144, 144, 144, 144, 144, 144, 144, 144, 169, 169, 169, 169, 169, 169, 169, 169

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

MATHEMATICA

Round[Sqrt[3*Range[0, 120]]]^2

CROSSREFS

Sequence in context: A246934 A378035 A206919 * A145445 A008794 A075709

Adjacent sequences: A168036 A168037 A168038 * A168040 A168041 A168042

KEYWORD

nonn

AUTHOR

Zak Seidov, Nov 17 2009

STATUS

approved