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Search: id:A132371
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| A132371 |
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a(n)=n!-{(n-1)!+(n-2)!+...+2!+1!}. |
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+0
2
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| 1, 1, 3, 15, 87, 567, 4167, 34407, 316647, 3219687, 35878887, 435046887, 5704064487, 80428314087, 1213746099687, 19521187251687, 333363035571687, 6024361885107687, 114864714882483687, 2304476522241459687, 48529614677597619687, 1070348458111786419687
(list; graph; listen)
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OFFSET
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1,3
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MAPLE
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seq(factorial(n)-(sum(factorial(j), j=1..n-1)), n=1..22); - Better definition from Emeric Deutsch (deutsch(AT)duke.poly.edu), May 26 2008
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CROSSREFS
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Sequence in context: A001931 A075841 A089022 this_sequence A127785 A074541 A074550
Adjacent sequences: A132368 A132369 A132370 this_sequence A132372 A132373 A132374
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KEYWORD
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nonn
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AUTHOR
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Ben Branman (137ben(AT)comcast.net), Nov 09 2007
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EXTENSIONS
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Corrected and extended by njas, Nov 11 2007
Better definition from Emeric Deutsch (deutsch(AT)duke.poly.edu), May 26 2008
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