id:A147924 - OEIS Search Results

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

+0
1

1, 2, 6, 16, 74, 304, 1720, 11448, 73544, 556452, 4351440, 39758684, 380173176, 3837917536, 45346283462, 532159158036 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Sequence in context: A147942 A147933 A147886 this_sequence A147908 A147900 A147892` `Adjacent sequences: A147921 A147922 A147923 this_sequence A147925 A147926 A147927`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Nov 17 2008`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.