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A032316
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"EGJ" (unordered, element, labeled) transform of 1,3,5,7...
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7
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1, 1, 3, 14, 45, 284, 1570, 9267, 70189, 496232, 4010526, 34481105, 308516868, 2926837289, 29200525341, 307118111601, 3309789462677, 37814191683984, 445615694701030, 5424871661765829, 68774736287172136, 898086216694079703, 12111344019974440847
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OFFSET
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0,3
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LINKS
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FORMULA
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E.g.f: Product_{k > 0} (1 + x^k/k!)^(2*k-1). - Andrew Howroyd, Sep 11 2018
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PROG
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(PARI) seq(n)={Vec(serlaplace(prod(k=1, n, (1 + x^k/k! + O(x*x^n))^(2*k-1))))} \\ Andrew Howroyd, Sep 11 2018
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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a(0)=1 prepended and terms a(21) and beyond from Andrew Howroyd, Sep 11 2018
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STATUS
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approved
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