0,3
a(n) = Ceil(Sqrt(n))
a(n)=A003059(n). - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 18 2008
a(1) = Ceil(Sqrt(1)) = 1
a(6) = Ceil(Sqrt(6)) = 3
Cf. A005408.
Adjacent sequences: A135031 A135032 A135033 this_sequence A135035 A135036 A135037
Sequence in context: A091092 A083375 A088519 this_sequence A003059 A011752 A025790
easy,nonn
William A. Tedeschi (fynmun(AT)hotmail.com), Feb 10 2008
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