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Search: id:A075185
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| 6, 137, 2436, 40614, 673470, 11389140, 198793980, 3602823840, 67991283360, 1337641905600, 27440275262400, 586731694348800, 13067437397414400, 302870068070169600, 7298072456298624000
(list; graph; listen)
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OFFSET
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0,1
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COMMENT
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Also one-fourth of fifth diagonal of triangle A048594.
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FORMULA
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a(n)= A075181(n+5, 4)/4 = A048594(n+5, n+1)/4, n>=0.
a(n)= (n+1)!*S1(n+5, n+1)/4 with S1(n, m) := A008275(n, m) (Stirling1).
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CROSSREFS
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Sequence in context: A013299 A013295 A090407 this_sequence A003994 A155558 A053467
Adjacent sequences: A075182 A075183 A075184 this_sequence A075186 A075187 A075188
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KEYWORD
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nonn,easy
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AUTHOR
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Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de), Sep 19, 2002
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