A022492 An upper bound for linearized chord diagrams.

1, 2, 4, 10, 28, 100, 421, 2101, 11953, 76121, 533780, 4077565, 33655662, 298278708, 2824175781, 28446451346, 303704165521, 3425895062137, 40716009508038, 508528878864884

Offset

1,2

Links

Table of n, a(n) for n=1..20.

A. Stoimenow, Enumeration of chord diagrams and an upper bound for Vassiliev invariants, J. Knot Theory Ramifications, 7 (1998), no. 1, 93-114 [broken link], [DOI]

Crossrefs

Cf. A022490.

Sequence in context: A374154 A085549 A374174 * A352068 A123429 A207018

Adjacent sequences: A022489 A022490 A022491 * A022493 A022494 A022495

Keyword

nonn

Author

Alexander Stoimenow (stoimeno(AT)math.toronto.edu)

Status

approved