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Search: id:A130744
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| 0, 3, 16, 90, 576, 4200, 34560, 317520, 3225600, 35925120, 435456000, 5708102400, 80472268800, 1214269056000, 19527937228800, 333456963840000, 6025763487744000, 114887039275008000, 2304854534062080000
(list; graph; listen)
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OFFSET
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1,2
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MATHEMATICA
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a[n_]:=(n+2)!-(n+1)!-n!; [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Dec 05 2008]
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CROSSREFS
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Sequence in context: A026330 A146963 A074562 this_sequence A009124 A067679 A099952
Adjacent sequences: A130741 A130742 A130743 this_sequence A130745 A130746 A130747
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KEYWORD
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nonn
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AUTHOR
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Paul Curtz (bpcrtz(AT)free.fr), Jul 12 2007
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EXTENSIONS
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More terms and Mathematica program from Orlovsky (4vladimir(AT)gmail.com), Dec 05 2008
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