id:A152644 - OEIS Search Results

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Number of permutations of floor(i*9/4), i=0..n-1, with all sums of 7 adjacent terms unique.

+0
1

1, 2, 6, 24, 120, 720, 5040, 40320, 343680, 3210336, 32428512, 359501856, 4409024192, 56394389456, 777561149096, 11557514999280 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Sequence in context: A152632 A152640 A152641 this_sequence A152637 A152645 A054873` `Adjacent sequences: A152641 A152642 A152643 this_sequence A152645 A152646 A152647`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Dec 10 2008`

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Last modified December 20 16:13 EST 2009. Contains 171081 sequences.

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