id:A122249 - OEIS Search Results

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Numerators of Hankel transform of 1/(2n+1).

+0
2

1, 4, 256, 65536, 1073741824, 70368744177664, 73786976294838206464, 309485009821345068724781056, 332306998946228968225951765070086144, 1427247692705959881058285969449495136382746624 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Conjecture - requires proof.`
	FORMULA	`a(n)=4^A122247(n); a(n)=4^sum{k=1..n, sum{j=0..n, floor(k/2^j)}};`
	CROSSREFS	`Sequence in context: A013734 A085534 A071617 this_sequence A060757 A136807 A057156` `Adjacent sequences: A122246 A122247 A122248 this_sequence A122250 A122251 A122252`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Aug 27 2006`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research