id:A166232 - OEIS Search Results

Search: id:A166232

Displaying 1-1 of 1 results found.

page 1

a(n)=A166231(n)/4^n.

+0
3

1, 1, 3, 20, 272, 7424, 405504, 44302336, 9680453632, 4230542786560, 3697657604210688, 6463791365183504384, 22598414411798807576576, 158015104883301198495481856, 2209780998563745292895322636288 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`a(n+1) is the Hankel transform of A068764.`
	FORMULA	`a(n)=2^C(n,2)sum{k=0..floor(n/2), C(n,2k)2^(-k)}; a(n)=A166231(n)/4^n.`
	CROSSREFS	`Sequence in context: A058477 A119758 A108527 this_sequence A136551 A086229 A130531` `Adjacent sequences: A166229 A166230 A166231 this_sequence A166233 A166234 A166235`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Oct 09 2009`

page 1

Search completed in 0.002 seconds

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

AT&T Labs Research