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A235352
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Series reversion of x*(1+3*x^2)/(1+x^2) in odd-power terms.
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2
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1, -2, 14, -130, 1382, -15906, 192894, -2427522, 31405430, -415086658, 5580629870, -76080887042, 1049295082630, -14613980359010, 205246677882078, -2903566870820610, 41337029956899222, -591796707042765954, 8514525059135909070, -123048063153362454402
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OFFSET
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0,2
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COMMENTS
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Conjugate turbulence sequence to A235347.
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LINKS
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FORMULA
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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
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CROSSREFS
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KEYWORD
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sign,easy
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AUTHOR
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STATUS
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approved
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