A018193 - OEIS

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A018193

Number of chord diagrams of degree n with an isolated chord of length 1.

1, 1, 3, 11, 69, 602, 6531, 84737, 1271143, 21623667 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,3`
	LINKS	`Alexander Stoimenow, On the number of chord diagrams, Discr. Math. 218 (2000), 209-233.` `Bar-Natan, Dror, On the Vassiliev Knot Invariants, Topology 34 (1995) 423-472.` `D. Bar-Natan, Bibliography of Vassiliev Invariants`
	CROSSREFS	`Sequence in context: A177008 A074504 A126115 * A121945 A009025 A009103` `Adjacent sequences: A018190 A018191 A018192 * A018194 A018195 A018196`
	KEYWORD	`nonn`
	AUTHOR	`Alexander Stoimenow (stoimeno(AT)math.toronto.edu)`

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Last modified February 15 09:09 EST 2012. Contains 205746 sequences.