id:A124078 - OEIS Search Results

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a(n) = H(n)*n!/(floor(n/2))!, where H(n) = sum{k=1 to n} 1/k, the n-th harmonic number.

+0
4

0, 1, 3, 11, 25, 137, 294, 2178, 4566, 42774, 88572, 1004532, 2064504, 27503832, 56243184, 860945040, 1754322480, 30342400560, 61664980320, 1189277851680, 2412077832000, 51324077044800, 103928089910400, 2418504655996800 (list; graph; listen)

	OFFSET	`0,3`
	LINKS	`Leroy Quet, Home Page (listed in lieu of email address)`
	MATHEMATICA	`f[n_] := HarmonicNumber[n]n!/Floor[n/2]!; Table[f@n, {n, 0, 23}] - Robert G. Wilson v (rgwv(AT)rgwv.com), Nov 26 2006`
	CROSSREFS	`Cf. A123989, A124079.` `Sequence in context: A001008 A096617 A025529 this_sequence A096795 A160039 A051925` `Adjacent sequences: A124075 A124076 A124077 this_sequence A124079 A124080 A124081`
	KEYWORD	`easy,nonn`
	AUTHOR	`Leroy Quet Nov 24 2006`
	EXTENSIONS	`More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Nov 26 2006`

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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.

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