id:A058575 - OEIS Search Results

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The sequence S defined in A058562.

+0
3

0, 0, 1, 7, 81, 1311, 27273, 693351, 20830113, 722035503, 28364200569, 1245313236663, 60429110073489, 3211572892464639, 185523138537151977, 11574425593731913479, 775591270444009771137, 55555665263291738684367, 4236182199641241492147801 (list; graph; listen)

	OFFSET	`0,4`
	FORMULA	`E.g.f.: -1/2LambertW(-2/3exp(-2/3+1/3*x))-1/3-x/3. - Vladeta Jovovic (vladeta(AT)eunet.rs), Jun 25 2007`
	MAPLE	`spec := [ S, {N=Union(Z, S, P, Q), S=Set(Union(Z, P, Q), card>=2), P=Set(Union(Z, S, Q), card>=2), Q=Set(Union(Z, S, P), card>=2)}, labeled ]; [seq(combstruct[count](spec, size=n), n=0..40)]; # N=A058562, S=A058575` `spec:=[S, {S=Set(Union(Z, S, S), card>=2)}, labeled]; [seq(combstruct[count](spec, size=n), n=0..20)]; - Vladeta Jovovic (vladeta(AT)eunet.rs), Jun 25 2007`
	CROSSREFS	`Cf. A058562.` `Sequence in context: A083226 A088735 A112119 this_sequence A013522 A139951 A141872` `Adjacent sequences: A058572 A058573 A058574 this_sequence A058576 A058577 A058578`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Dec 26 2000`

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

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