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A327672 a(n) = Sum_{k=0..n} ceiling(sqrt(k)). 2
0, 1, 3, 5, 7, 10, 13, 16, 19, 22, 26, 30, 34, 38, 42, 46, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 101, 107, 113, 119, 125, 131, 137, 143, 149, 155, 161, 168, 175, 182, 189, 196, 203, 210, 217, 224, 231, 238, 245, 252, 260, 268, 276, 284, 292, 300, 308, 316 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

Partial sums of A003059.

LINKS

Peter Kagey, Table of n, a(n) for n = 0..10000

MATHEMATICA

Accumulate[Ceiling[Sqrt[Range[0, 60]]]]

CROSSREFS

Cf. A003059, A022554.

Sequence in context: A003070 A036604 A001768 * A089108 A186355 A029899

Adjacent sequences:  A327669 A327670 A327671 * A327673 A327674 A327675

KEYWORD

nonn

AUTHOR

Peter Kagey, Sep 21 2019

STATUS

approved

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Last modified November 13 08:18 EST 2019. Contains 329093 sequences. (Running on oeis4.)