id:A157058 - OEIS Search Results

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Number of integer sequences of length n+1 with sum zero and sum of absolute values 18

+0
1

2, 54, 812, 8580, 70310, 472626, 2703512, 13507416, 60110030, 241925530, 891454124, 3037849828, 9654482474, 28818500830, 81289041680, 217815522736, 556959705302, 1364497268946, 3214138597460, 7302195414780, 16045139112002 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`a(n)=T(n,9); 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: A113028 A055024 A057411 this_sequence A071798 A123686 A122418` `Adjacent sequences: A157055 A157056 A157057 this_sequence A157059 A157060 A157061`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Feb 22 2009`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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