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A049188
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Revert transform of 2*x*(1 - x + x^4 - x^5 + x^6)-x/(1+x).
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0
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1, 1, 3, 9, 31, 113, 429, 1679, 6719, 27367, 113053, 472471, 1993785, 8483023, 36348595, 156705421, 679218965, 2957961685, 12936141935, 56787742645, 250137441355, 1105189823717, 4896749876081, 21751355833739
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OFFSET
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1,3
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COMMENTS
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Sign diagram of generating sequence: +++--+++--------...
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LINKS
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MAPLE
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Order := 80:
g := 2*x*(1-x+x^4-x^5+x^6)-x/(1+x) ;
solve(series(g, x)=y, x) :
convert(%, polynom) :
seq(coeff(%, y, i), i=0..Order-1) ; # R. J. Mathar, Jul 24 2023
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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