id:A001769 - OEIS Search Results

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Expansion of 1/((1+x)(1-x)^7).

+0
4

1, 6, 22, 62, 148, 314, 610, 1106, 1897, 3108, 4900, 7476, 11088, 16044, 22716, 31548, 43065, 57882, 76714, 100386, 129844, 166166, 210574, 264446, 329329, 406952, 499240, 608328, 736576, 886584, 1061208 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n)=sum{k=0..n, (-1)^(n-k)C(k+6, 6) }; a(n)=(4n^6+96n^5+910n^4+4320n^3+10696n^2+12864n+5715)/5760+(-1)^n/128. - Paul Barry (pbarry(AT)wit.ie), Jul 01 2003`
	CROSSREFS	`Cf. A002620, A002623, A001752, A001753.` `Sequence in context: A105450 A011888 A081282 this_sequence A120477 A053739 A055797` `Adjacent sequences: A001766 A001767 A001768 this_sequence A001770 A001771 A001772`
	KEYWORD	`nonn`
	AUTHOR	`njas`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research