id:A014434 - OEIS Search Results

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Sum[ a[ i ]a[ n-i ],{i,0,n-1} ], a[ 0 ] == 1, a[ 1 ]==5.

+0
2

1, 5, 5, 30, 80, 405, 1505, 7255, 31155, 149455, 688655, 3334880, 15965130, 78294155, 383599455, 1903940030, 9474093880, 47514889255, 239112929655, 1209724381330, 6140755848280, 31294613247255, 159963286607755 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`G.f.: (1+x-sqrt(1-2x-19x^2))/(2*x) - C. Ronaldo (aga_new_ac(AT)hotmail.com), Dec 19 2004`
	CROSSREFS	`Adjacent sequences: A014431 A014432 A014433 this_sequence A014435 A014436 A014437` `Sequence in context: A081847 A020551 A117858 this_sequence A106830 A067047 A139386`
	KEYWORD	`nonn`
	AUTHOR	`Wouter Meeussen (wouter.meeussen(AT)pandora.be)`

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Last modified October 12 15:26 EDT 2008. Contains 144830 sequences.

AT&T Labs Research