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A111100 Coefficient (times -1) of the 1/r^(2n) term in the radial far-field expansion of the squared amplitude of a doubly-charged topological point defect (-2 or +2 vortex) in the two-dimensional Ginzburg-Landau equation. 0
4, 8, 112, 2720, 103552, 5764352, 445521664, 45890802176, 6094567045120, 1015769696055296 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Ginzburg-Landau vortex solutions are fundamental in the study of superconductors and superfluids.

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

a(3) = 112 because A(r)^2 = 1- 4/r^2 - 8/r^4 - 112/r^6 - ...

CROSSREFS

Cf. A110818.

Sequence in context: A336795 A273060 A215844 * A105036 A012940 A182967

Adjacent sequences:  A111097 A111098 A111099 * A111101 A111102 A111103

KEYWORD

nonn

AUTHOR

Greg Huber, Oct 13 2005

STATUS

approved

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Last modified June 22 14:21 EDT 2021. Contains 345380 sequences. (Running on oeis4.)