OFFSET
1,2
COMMENTS
Tables and seats are labeled. For unlabeled version, see A277265.
FORMULA
T(n,k) = A277256(n,k) * 2^n * (n*k)!.
EXAMPLE
Table T(n,k):
n=1: 0, 0, 12, 96, 3120, 115200, ...
n=2: 8, 384, 236160, 764467200, ...
n=3: 96, 460800, 125962905600, ...
n=4: 3456, 3065610240, 453840358706380800, ...
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Max Alekseyev, Oct 07 2016
STATUS
approved