id:A039759 - OEIS Search Results

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Number of edges in the Hasse diagrams for the B-analogues of the partition lattices.

+0
3

0, 1, 8, 58, 432, 3396, 28384, 252456, 2385280, 23874448, 252380800, 2809461920, 32841595136, 402105388608, 5144478074368, 68625615724160, 952603633463296, 13735016459768064, 205358227932235776 (list; graph; listen)

	OFFSET	`0,3`
	LINKS	`R. Suter, Two analogues of a classical sequence, J. Integer Sequences, Vol. 3 (2000), #P00.1.8.`
	FORMULA	`E.g.f.: 1/4 (exp(4 x) - 1) exp(1/2 exp(2 x) + x - 1/2)`
	CROSSREFS	`Edges in the Hasse diagrams for partition lattices: A003128, D-analogues = A039765.` `Sequence in context: A037532 A062236 A126529 this_sequence A047867 A002538 A112424` `Adjacent sequences: A039756 A039757 A039758 this_sequence A039760 A039761 A039762`
	KEYWORD	`nonn`
	AUTHOR	`Ruedi Suter (suter(AT)math.ethz.ch)`

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Last modified March 20 09:10 EDT 2010. Contains 173642 sequences.

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