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Search: id:A088957
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| A088957 |
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Hyperbinomial transform of the sequence of 1's. |
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+0 6
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| 1, 2, 6, 29, 212, 2117, 26830, 412015, 7433032, 154076201, 3608522954, 94238893883, 2715385121740, 85574061070045, 2928110179818478, 108110945014584623, 4284188833355367440, 181370804507130015569
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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See A088956 for the definition of the hyperbinomial transform.
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FORMULA
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a(n) = sum(k=0, n, (n-k+1)^(n-k-1)*C(n, k)). E.g.f. A(x) = exp(x+sum(n>=1, n^(n-1)*x^n/n!)).
E.g.f.: -LambertW(-x)*exp(x)/x. - Vladeta Jovovic (vladeta(AT)eunet.rs), Oct 27 2003
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EXAMPLE
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a(5) = 1296+625+160+30+5+1 = sum of row 5 of triangle A088956.
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CROSSREFS
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Cf. A088956 (triangle).
Row sums of A144289. [From Alois P. Heinz (heinz(AT)hs-heilbronn.de), Jun 01 2009]
Sequence in context: A107375 A020126 A124529 this_sequence A030538 A076978 A079615
Adjacent sequences: A088954 A088955 A088956 this_sequence A088958 A088959 A088960
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KEYWORD
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nonn
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AUTHOR
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Paul D. Hanna (pauldhanna(AT)juno.com), Oct 26 2003
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