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Search: id:A062098
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| 7, 14, 42, 168, 840, 5040, 35280, 282240, 2540160, 25401600, 279417600, 3353011200, 43589145600, 610248038400, 9153720576000, 146459529216000, 2489811996672000, 44816615940096000, 851515702861824000
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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Harry J. Smith, Table of n, a(n) for n=1,...,100
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FORMULA
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a(n) = n*a(n-1); a(1) = 7.
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MAPLE
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restart: G(x):=(x-8)/(1-x): f[0]:=G(x): for n from 1 to 19 do f[n]:=diff(f[n-1], x) od: x:=0: seq(-f[n], n=1..19); # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Apr 03 2009]
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PROGRAM
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(PARI) { a=7; for (n=1, 100, write("b062098.txt", n, " ", a*=n) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Aug 01 2009]
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CROSSREFS
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Sequence in context: A161814 A067048 A098328 this_sequence A045759 A166637 A033650
Adjacent sequences: A062095 A062096 A062097 this_sequence A062099 A062100 A062101
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KEYWORD
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nonn,easy
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AUTHOR
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Dan Henry (daniel.henry(AT)umit.maine.com), Jun 28 2001
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EXTENSIONS
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More terms from Larry Reeves (larryr(AT)acm.org), Jul 05 2001
OFFSET changed from 7,1 to 1,1 by Harry J. Smith (hjsmithh(AT)sbcglobal.net), Aug 01 2009
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