id:A157068 - OEIS Search Results

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Number of integer sequences of length n+1 with sum zero and sum of absolute values 38

+0
1

2, 114, 3612, 80180, 1374690, 19234194, 227605448, 2335932504, 21186110970, 172295622730, 1271112537684, 8588601364668, 53573492643034, 310601807143530, 1683493452034320, 8573748834211984, 41210997268585158, 187693442844729174 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`a(n)=T(n,19); 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: A053976 A034312 A140986 this_sequence A008271 A065670 A105327` `Adjacent sequences: A157065 A157066 A157067 this_sequence A157069 A157070 A157071`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Feb 22 2009`

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Last modified December 1 19:22 EST 2009. Contains 167811 sequences.

AT&T Labs Research