id:A078819 - OEIS Search Results

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140*C(2n,n)/(n+4).

+0
4

35, 56, 140, 400, 1225, 3920, 12936, 43680, 150150, 523600, 1847560, 6584032, 23661365, 85652000, 312018000, 1142971200, 4207562730, 15557374800, 57750861000, 215145084000, 804104751450, 3014244096864, 11329763650800 (list; graph; listen)

	OFFSET	`0,1`
	FORMULA	`a(n) =a(n-1)(4n^2+10n-6)/(n^2+4n) =A078817(n, 3) =7A078820(n)/(2n+1) =140*A000984(n)/(n+4).`
	EXAMPLE	`a(5)=140*C(10,5)/9=3920`
	CROSSREFS	`Cf. A000108, A038629, A078818.` `Sequence in context: A157352 A090877 A048033 this_sequence A095958 A026064 A092256` `Adjacent sequences: A078816 A078817 A078818 this_sequence A078820 A078821 A078822`
	KEYWORD	`nonn`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), Dec 07 2002`

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

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