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A362673
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E.g.f. satisfies A(x) = exp( x * exp(x^2) / A(x) ).
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3
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1, 1, -1, 10, -51, 556, -7085, 116376, -2263303, 51072400, -1308626649, 37526799520, -1190440709051, 41385630158016, -1564585725985477, 63903022429837696, -2804097015221308815, 131558782973452677376, -6571623885587502740657
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OFFSET
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0,4
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LINKS
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FORMULA
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E.g.f.: exp( LambertW(x * exp(x^2)) ).
a(n) = n! * Sum_{k=0..floor(n/2)} (n-2*k)^k * (-n+2*k+1)^(n-2*k-1) / (k! * (n-2*k)!).
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PROG
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(PARI) my(N=20, x='x+O('x^N)); Vec(serlaplace(exp(lambertw(x*exp(x^2)))))
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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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