id:A166359 - OEIS Search Results

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Diagonal sums of the exponential Riordan array [1+x*atanh(x), x], A166357.

+0
2

1, 3, 15, 197, 6909, 459383, 48252699, 7299708105, 1499523879481, 401147660278507, 135421121289695655, 56285769483090611085, 28237152577765405343285, 16821061018350834178553055 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Aeration of this sequence gives the diagonal sums of A166357.`
	FORMULA	`a(n):=sum{k=0..n, C(n+k,2k)*A166356(k)}.`
	CROSSREFS	`Sequence in context: A063739 A060194 A068858 this_sequence A003505 A120601 A145272` `Adjacent sequences: A166356 A166357 A166358 this_sequence A166360 A166361 A166362`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Oct 12 2009`

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

AT&T Labs Research