|
Search: id:A091753
|
|
|
| A091753 |
|
Fourth column (m=5) of array A091752 ((-1,2)Stirling2) divided by -6. |
|
+0
2
|
|
| 1, 60, 6720, 1232000, 336336000, 128076748800, 64892219392000, 42217023873024000, 34301331896832000000, 34042166278055936000000, 40523794737397786214400000, 56991191326140341157888000000
(list; graph; listen)
|
|
|
OFFSET
|
3,2
|
|
|
FORMULA
|
a(n)= -A091752(n, 5)/6, n>=3.
a(n)=((n-1)*(n-2)/4)*(3*(n-2))!/((3^(n-2))*(n-2)!) = ((n-1)*(n-2)/4)*A052502(n-2), n>=3.
G.f.: (x^3)*hypergeom([4/3, 5/3, 3], [], 9*x).
|
|
CROSSREFS
|
Sequence in context: A074076 A084274 A091032 this_sequence A130214 A003750 A001525
Adjacent sequences: A091750 A091751 A091752 this_sequence A091754 A091755 A091756
|
|
KEYWORD
|
nonn,easy
|
|
AUTHOR
|
Wolfdieter Lang (wolfdieter.lang_AT_physik_DOT_uni-karlsruhe_DOT_de), Feb 27 2004
|
|
|
Search completed in 0.002 seconds
|
