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Search: id:A090449
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A090449 Fifth column (m=4) of triangle A090447. +0
4
96, 2500, 27000, 180075, 878080, 3429216, 11340000, 32942250, 86248800, 207352860, 464199736, 978193125, 1956864000, 3741740800, 6876627840, 12202737156, 20988540000, 35103820500, 57249238200, 91254750895 (list; graph; listen)
OFFSET

4,1

FORMULA

a(n)= A090447(n, 4)= (n^4*(n-1)^3*(n-2)^2*(n-3)^1)/(1!*2!*3!*4!), n>=4.

CROSSREFS

Adjacent sequences: A090446 A090447 A090448 this_sequence A090450 A090451 A090452

Sequence in context: A064243 A001667 A093984 this_sequence A105254 A008660 A035150

KEYWORD

nonn,easy

AUTHOR

Wolfdieter Lang (wolfdieter.lang_AT_physik_DOT_uni-karlsruhe_DOT_de), Dec 23 2003

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Last modified October 12 15:26 EDT 2008. Contains 144830 sequences.


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