id:A157072 - OEIS Search Results

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Number of integer sequences of length n+1 with sum zero and sum of absolute values 46

+0
1

2, 138, 5292, 142140, 2947590, 49858158, 712832792, 8832976488, 96648771870, 947399938870, 8416542780492, 68407265558268, 512700872216442, 3567168162771570, 23172711963346320, 141251698411654288 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`a(n)=T(n,23); 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: A000662 A139907 A087619 this_sequence A051029 A084560 A054681` `Adjacent sequences: A157069 A157070 A157071 this_sequence A157073 A157074 A157075`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Feb 22 2009`

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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.

AT&T Labs Research