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A075184
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One half of fourth column of triangle A075181.
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1
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3, 50, 675, 8820, 117600, 1632960, 23814000, 365904000, 5927644800, 101189088000, 1818030614400, 34326452160000, 679990671360000, 14108934647808000, 306113492805120000, 6933770723303424000
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OFFSET
| 0,1
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COMMENTS
| Also one half of fourth diagonal of unsigned triangle A048594.
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FORMULA
| a(n)= A075181(n+4, 3)/2 = |A048594(n+4, n+1)|/2, n>=0.
a(n)= -(n+1)!*S1(n+4, n+1)/2 with S1(n, m) := A008275(n, m) (Stirling1).
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CROSSREFS
| Sequence in context: A012857 A034201 A099346 * A203239 A185157 A078674
Adjacent sequences: A075181 A075182 A075183 * A075185 A075186 A075187
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KEYWORD
| nonn,easy
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AUTHOR
| Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de), Sep 19, 2002
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