id:A080895 - OEIS Search Results

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Expansion of the exponential series exp( x R(x) ) = exp[(1 + x - sqrt[1 - 2 x - 3x^2])/(2(1 + x))], where R(x) is the ordinary generating series of the Riordan numbers A005043.

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1, 1, 1, 7, 49, 541, 7321, 122011, 2390977, 54027289, 1382140081, 39493358191, 1246693438321, 43087256236597, 1618203187947529, 65621724413560771, 2857736621103221761, 133014764141210620081, 6589916027200886776417 (list; graph; listen)

	OFFSET	`0,4`
	FORMULA	`E.G.F. Exp[(1 + x - Sqrt[1 - 2 x - 3x^2])/(2(1 + x))]`
	CROSSREFS	`Cf. A005043.` `Sequence in context: A005924 A125796 A135745 this_sequence A047899 A061585 A067214` `Adjacent sequences: A080892 A080893 A080894 this_sequence A080896 A080897 A080898`
	KEYWORD	`easy,nice,nonn`
	AUTHOR	`Emanuele Munarini (munarini(AT)mate.polimi.it), Mar 31 2003`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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