id:A098506 - OEIS Search Results

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Row sums of the number triangle A098505.

+0
2

1, 2, 3, 8, 9, 22, 19, 100, 101, 266, 435, 860, 1603, 4110, 6529, 4672, 12397, 21558, 7845, 57648, 9447, 50190, 199053, 1880620, 1710309, 7344462, 7529113, 34610408, 555889, 3316906, 21528385, 167087336, 124402817, 73289470, 764401867 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n)=sum{k=0..n, numerator((n+1)binomial(n, k)/binomial(2n, n))}`
	CROSSREFS	`Sequence in context: A093765 A104577 A103026 this_sequence A163168 A085453 A030439` `Adjacent sequences: A098503 A098504 A098505 this_sequence A098507 A098508 A098509`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Sep 11 2004`

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Last modified December 9 14:43 EST 2009. Contains 170430 sequences.

AT&T Labs Research