id:A119430 - OEIS Search Results

Search: id:A119430

Displaying 1-1 of 1 results found.

page 1

A119430

Expansion of sum{k>=0, 2^k*x^(2k)/prod[j=1..k, 1-j*2x]}.

+0
1

1, 0, 2, 4, 12, 40, 152, 640, 2928, 14400, 75744, 424640, 2527552, 15902848, 105313408, 731376640, 5311088896, 40233525248, 317296341504, 2600091120640, 22099119279104, 194487001540608, 1769555559897088, 16622286300921856 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`a(n)=sum{k=0..n, S2(k,n-k)2^k} where S2(n,k)=A048993(n,k); a(n)=sum{k=0..floor(n/2), S2(n-k,k)2^(n-k)}.`
	CROSSREFS	`Cf. A119429.` `Sequence in context: A056236 A028329 A025227 this_sequence A074034 A062962 A033472` `Adjacent sequences: A119427 A119428 A119429 this_sequence A119431 A119432 A119433`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), May 19 2006`

page 1

Search completed in 0.002 seconds

Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research