id:A157063 - OEIS Search Results

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Number of integer sequences of length n+1 with sum zero and sum of absolute values 28

+0
1

2, 84, 1962, 32130, 406800, 4208610, 36881420, 280819260, 1893408750, 11472968760, 63221641758, 319917948246, 1498750896708, 6545498596110, 26808012135000, 103501142484360, 378407481456870, 1315394383751460 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`a(n)=T(n,14); T(n,k)=sum({i=1..n}binomial(n+1,i)binomial(k-1,i-1)binomial(n-i+k,k))`
	CROSSREFS	`A103881 A156554` `Sequence in context: A108312 A065591 A099373 this_sequence A157315 A163971 A078166` `Adjacent sequences: A157060 A157061 A157062 this_sequence A157064 A157065 A157066`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Feb 22 2009`

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.

AT&T Labs Research