id:A158142 - OEIS Search Results

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Number of nondecreasing integer sequences of length 8 with sum zero and sum of absolute values 2n.

+0
1

1, 4, 9, 25, 46, 103, 163, 307, 478, 791, 1143, 1818, 2495, 3663, 4994, 7002, 9154, 12532, 15986, 21200, 26726, 34398, 42532, 54145, 65791, 81872, 98871, 121163, 144174, 175083, 206075, 246947, 289116, 342271, 397027, 467462, 537495, 626427 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`a(n) = A000041(n)^2 for n<=4` `a(n) = A000041(n)^2 - cumulative A000712(2n-1-length), 0 <= 2n-1-length <= floor(n/2) [empirical].`
	LINKS	`Ron Hardin, Table of n, a(n) for n=1..689`
	CROSSREFS	`Sequence in context: A063760 A130448 A046451 this_sequence A158143 A082200 A063482` `Adjacent sequences: A158139 A158140 A158141 this_sequence A158143 A158144 A158145`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Mar 13 2009`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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