id:A014811 - OEIS Search Results

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Sum(ceil(k^2/n), k=1..n-1).

+0
2

0, 1, 3, 5, 8, 12, 17, 22, 26, 33, 41, 49, 56, 66, 77, 86, 96, 107, 121, 135, 148, 162, 179, 196, 206, 225, 243, 263, 280, 302, 323, 344, 364, 385, 411, 433, 456, 482, 511, 538, 560, 589, 617, 649, 676, 708, 741, 774, 798, 831, 869, 903, 936, 972, 1013, 1052 (list; graph; listen)

	OFFSET	`1,3`
	REFERENCES	`M. Eichler and D. Zagier, The Theory of Jacobi Forms, Birkhauser, 1985, p. 103.`
	MAPLE	`f := n->sum( ceil(k^2/n), k=1..n-1);`
	PROGRAM	`(PARI) a(n)=sum(k=1, n-1, ceil(k^2/n))`
	CROSSREFS	`Sequence in context: A000212 A094913 A020678 this_sequence A131674 A095173 A002579` `Adjacent sequences: A014808 A014809 A014810 this_sequence A014812 A014813 A014814`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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