id:A064484 - OEIS Search Results

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Triangle T(n,k), n >= 2,n+1<=k<=2*n-1, number of permutations p of 1,...,n, with max(p(i)+p(i-1),i=2..n)=k.

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2, 2, 4, 4, 8, 12, 4, 32, 36, 48, 8, 64, 216, 192, 240, 8, 208, 648, 1536, 1200, 1440, 16, 416, 3024, 6144, 12000, 8640, 10080, 16, 1280, 9072, 37632, 60000, 103680, 70560, 80640, 32, 2560, 38880 (list; table; graph; listen)

	OFFSET	`2,1`
	COMMENT	`T(n,n-1)=A052849 sum(T(n,k),k=1..n-1)=A000142`
	CROSSREFS	`A052849, A000142.` `Sequence in context: A000011 A022476 A000013 this_sequence A063776 A118406 A072488` `Adjacent sequences: A064481 A064482 A064483 this_sequence A064485 A064486 A064487`
	KEYWORD	`nice,nonn,tabl`
	AUTHOR	`Klaus Strassburger (strass(AT)ddfi.uni-duesseldorf.de), Oct 05 2001`
	EXTENSIONS	`More terms from Naohiro Nomoto (n_nomoto(AT)yabumi.com), Nov 26 2001`

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

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