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A292363
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Expansion of the series reversion of x*Product_{k>=0} (1 + x^(2^k) + x^(2^(k + 1))).
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0
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1, -1, 0, 4, -13, 19, 29, -271, 813, -751, -4760, 27090, -64793, -7211, 711474, -2960908, 5032677, 10613605, -101563784, 324249252, -277992739, -2445619767, 13926689707, -33471888047, -12186274415, 441311889151, -1820392010748, 2958129727814, 8133042126855, -71172149566357, 222777402233343
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OFFSET
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1,4
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COMMENTS
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LINKS
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FORMULA
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G.f. A(x) satisfies: A(x)*Product_{k>=0} (1 + A(x)^(2^k) + A(x)^(2^(k + 1))) = x.
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MATHEMATICA
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nmax = 31; Rest[CoefficientList[InverseSeries[Series[x Product[1 + x^(2^k) + x^(2^(k + 1)), {k, 0, nmax}], {x, 0, nmax}], x], x]]
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CROSSREFS
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KEYWORD
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sign
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AUTHOR
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STATUS
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approved
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