|
| |
|
|
A091755
|
|
Sixth column (m=7) of array A091752 ((-1,2)Stirling2) divided by -12.
|
|
1
| |
|
|
1, 140, 27720, 7847840, 3049446400, 1564366003200, 1026108219136000, 838477001922560000, 835580445006827520000, 997744946185930342400000, 1406513375677181496524800000, 2311431202054422682730496000000
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 4,2
|
|
|
FORMULA
| a(n)= -A091752(n, 7)/12, n>=4.
a(n)= (3/(4*5!))*n*(n-3)*(3*(n-2))!/((3^(n-2))*(n-2)!) = 3*n*(n-3)* A052502(n-2)/(4*5!), n>=4.
G.f.: (x^4)*hypergeom([7/3, 8/3, 5, 2], [4], 9*x).
|
|
|
CROSSREFS
| Sequence in context: A159366 A189505 A190078 * A189552 A181238 A185402
Adjacent sequences: A091752 A091753 A091754 * A091756 A091757 A091758
|
|
|
KEYWORD
| nonn,easy
|
|
|
AUTHOR
| Wolfdieter Lang (wolfdieter.lang_AT_physik_DOT_uni-karlsruhe_DOT_de), Feb 27 2004
|
| |
|
|
