id:A147923 - OEIS Search Results

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

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1, 2, 6, 16, 96, 376, 2016, 12168, 109882, 783536, 6232926, 59671520, 718155492, 7173976288, 76938806480, 981871005232 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Sequence in context: A147950 A147941 A147932 this_sequence A144690 A118305 A139629` `Adjacent sequences: A147920 A147921 A147922 this_sequence A147924 A147925 A147926`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Nov 17 2008`

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.