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A183230
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G.f.: Sum_{n>=0} a(n)*x^n/n!^3 = Product_{n>=1} (1 + x^n/n!^3).
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2
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1, 1, 1, 28, 65, 1126, 219592, 1210105, 26891713, 2147043538, 2019029825126, 21746314187335, 770200602942872, 54021095931416459, 16833586753169817373, 54446959965626243089903, 1039787297277083116535233
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OFFSET
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0,4
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LINKS
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EXAMPLE
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G.f.: A(x) = 1 + x + x^2/2!^3 + 28*x^3/3!^3 + 65*x^4/4!^3 +...
A(x) = (1 + x)*(1 + x^2/2!^3)*(1 + x^3/3!^3)*(1 + x^4/4!^3)*...
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PROG
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(PARI) {a(n)=n!^3*polcoeff(prod(k=1, n, 1+x^k/k!^3 +x*O(x^n)), n)}
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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