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A362338
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a(n) = n! * Sum_{k=0..floor(n/3)} (-k)^k / (k! * (n-3*k)!).
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2
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1, 1, 1, -5, -23, -59, 1321, 9871, 39985, -1512503, -16027919, -89148509, 4751428441, 65256458125, 461686022617, -31737431328329, -535583971806239, -4599769739165039, 387180506424212065, 7750866424109754187, 78298694889496869961, -7798395141074580424619
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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(x) / (1 + LambertW(x^3)).
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PROG
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(PARI) my(N=30, x='x+O('x^N)); Vec(serlaplace(exp(x)/(1+lambertw(x^3))))
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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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