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 A137274 Even terms in the Taylor series for the Fisher Information of a Rice-distributed variable (at amplitude 0, with sigma==1). 0
 0, 2, -24, 900, -80640, 14288400, -4400827200, 2156641086600, -1577763611424000, 1642267210487904000, -2342289079736686080000, 4440975210468688551660000, -10917777323646285908175360000, 34083310964641049282713542000000, -132737301192061195797209453611200000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS The odd terms of this Taylor expansion are zero. LINKS Table of n, a(n) for n=0..14. FORMULA Integrate[ D[ x*exp( -(A^2 + x^2)/2 ) * BesselI[0,A*x] * (A-x*BesselI[1,A*x]/BesselI[0,A*x])^2, {A,2*k}], {x,0,\[Infinity]},Assumptions -> {A == 0}] MATHEMATICA nmax = 10; Table[(CoefficientList[Integrate[Series[x*E^(-(A^2 + x^2)/2) * BesselI[0, A*x]*(A - x*BesselI[1, A*x]/BesselI[0, A*x])^2, {A, 0, 2*nmax}], {x, 0, Infinity}], A] * Range[0, 2*nmax]!)[[2*k + 1]], {k, 0, nmax}] (* Vaclav Kotesovec, Oct 09 2023 *) CROSSREFS Sequence in context: A264559 A012186 A012081 * A002032 A015212 A012228 Adjacent sequences: A137271 A137272 A137273 * A137275 A137276 A137277 KEYWORD sign AUTHOR D. H. J. Poot (dirk.poot(AT)ua.ac.be), Mar 13 2008 EXTENSIONS More terms from Vaclav Kotesovec, Oct 09 2023 STATUS approved

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Last modified April 15 17:30 EDT 2024. Contains 371693 sequences. (Running on oeis4.)