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A361979
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Expansion of 1 / Sum_{k>=0} x^(k*(2*k - 1)).
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2
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1, -1, 1, -1, 1, -1, 0, 1, -2, 3, -4, 5, -5, 4, -2, -2, 7, -13, 19, -24, 27, -25, 17, -2, -20, 48, -80, 110, -132, 137, -116, 62, 30, -158, 314, -479, 622, -704, 680, -507, 150, 405, -1135, 1973, -2797, 3432, -3662, 3250, -1983, -280, 3540, -7592, 11977, -15953
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OFFSET
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0,9
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LINKS
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MATHEMATICA
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nmax = 53; CoefficientList[Series[1/Sum[x^(k (2 k - 1)), {k, 0, nmax}], {x, 0, nmax}], 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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