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 A235352 Series reversion of x*(1+3*x^2)/(1+x^2) in odd-power terms. 2
 1, -2, 14, -130, 1382, -15906, 192894, -2427522, 31405430, -415086658, 5580629870, -76080887042, 1049295082630, -14613980359010, 205246677882078, -2903566870820610, 41337029956899222, -591796707042765954, 8514525059135909070, -123048063153362454402 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS Conjugate turbulence sequence to A235347. LINKS Georg Fischer, Table of n, a(n) for n = 0..1000 (first 939 terms from Fung Lam) FORMULA D-finite with recurrence 12*n*(2*n+1)*a(n) +(382*n^2-391*n+90)*a(n-1) +3*(34*n^2-132*n+125)*a(n-2) +(2*n-5)*(n-3)*a(n-3)=0. - R. J. Mathar, Mar 24 2023 CROSSREFS Cf. A235347. Sequence in context: A258389 A168658 A235347 * A146971 A246481 A048990 Adjacent sequences: A235349 A235350 A235351 * A235353 A235354 A235355 KEYWORD sign,easy AUTHOR Fung Lam, Jan 16 2014 STATUS approved

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Last modified November 29 14:38 EST 2023. Contains 367445 sequences. (Running on oeis4.)