A110489 - OEIS

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A110489

Row sums of a triangle based on the Catalan numbers.

1, 2, 5, 14, 43, 142, 497, 1828, 7037, 28326, 119361, 527748, 2454929, 12041410, 62354641, 340840118, 1963757863, 11896370734, 75549183725, 501393978466, 3467199478543, 24916100775758, 185646100106929, 1431332539961350 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	COMMENTS	`Row sums of A110488.`
	FORMULA	`a(n)=sum{k=0..n, sum{j=0..n-k, (k-1)^jC(2(n-k)+1, n-k-j)2*(j+1)/(n-k+j+2)}}`
	CROSSREFS	`Sequence in context: A126566 A112808 A088927 * A005425 A035349 A155888` `Adjacent sequences: A110486 A110487 A110488 * A110490 A110491 A110492`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Jul 22 2005`

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Last modified February 16 12:41 EST 2012. Contains 205909 sequences.