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A160602
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Denominator of Laguerre(n, -9).
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3
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1, 1, 2, 1, 8, 20, 16, 280, 4480, 64, 44800, 49280, 1971200, 1830400, 14350336, 896896000, 74547200, 243955712000, 6823936000, 109062553600, 52973240320000, 51913775513600, 3359126650880000, 93815608606720000, 2101469632790528000
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OFFSET
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0,3
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LINKS
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MATHEMATICA
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Denominator[Table[LaguerreL[n, -9], {n, 0, 50}]] (* G. C. Greubel, May 13 2018 *)
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PROG
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(PARI) for(n=0, 30, print1(denominator(sum(k=0, n, binomial(n, k)*(9^k/k!))), ", ")) \\ G. C. Greubel, May 13 2018
(PARI) a(n) = denominator(pollaguerre(n, 0, -9)); \\ Michel Marcus, Feb 05 2021
(Magma) [Denominator((&+[Binomial(n, k)*(9^k/Factorial(k)): k in [0..n]])): n in [0..30]]; // G. C. Greubel, May 13 2018
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CROSSREFS
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KEYWORD
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nonn,frac
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AUTHOR
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STATUS
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approved
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