A105807 - OEIS

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A105807

Sums of half the rows of array A105805.

0, 1, 2, 4, 7, 12, 18, 29, 42, 61, 87, 125, 172, 235, 320, 437, 580, 759, 1002, 1329, 1718, 2191, 2784, 3624, 4633 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,3`
	COMMENTS	`The row sums are zero due to antisymmetry of each row. See A105805.`
	FORMULA	`a(n)=sum( A105805(n, k), k=1..floor(p(n)/2)), with the partition numbers p(n)= A000041(n).`
	CROSSREFS	`Sequence in context: A003318 A035300 A035296 * A192521 A066699 A188425` `Adjacent sequences: A105804 A105805 A105806 * A105808 A105809 A105810`
	KEYWORD	`nonn,easy`
	AUTHOR	`Wolfdieter Lang (wolfdieter.lang_AT_physik_DOT_uni-karlsruhe_DOT_de), Apr 28 2005`

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Last modified February 17 17:35 EST 2012. Contains 206061 sequences.