|
|
A091754
|
|
Fifth column (m=6) of array A091752 ((-1,2)Stirling2).
|
|
1
|
|
|
1, 80, 9520, 1786400, 493292800, 189065676800, 96179539456000, 62739188255744000, 51070871935283200000, 50753775178192486400000, 60478693661116393062400000, 85121458839683971088384000000
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
3,2
|
|
LINKS
|
|
|
FORMULA
|
a(n)= ((3*(n-2))!/((3^(n-2))*(n-2)!))*(9*n^2-27*n+12)/4! = A052502(n-2)*(9*n^2-27*n+12)/4!, n>=3.
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,easy
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|