|
| |
|
|
A099394
|
|
Triangle T(k,n) by rows: n! * A075499(k,n).
|
|
0
| |
|
|
1, 4, 1, 16, 12, 2, 64, 112, 48, 6, 256, 960, 800, 240, 24, 1024, 7936, 11520, 6240, 1440, 120, 4096, 64512, 154112, 134400, 53760, 10080, 720, 16384, 520192, 1978368, 2612736, 1612800, 510720, 80640, 5040, 65536, 4177920, 24780800
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,2
|
|
|
COMMENTS
| Triangle given by [4,0,8,0,12,0,16,0,20,0,24,0,28,0,...] DELTA [1,1,2,2,3,3,4,4,5,5,6,6,...] where DELTA is the operator defined in A084938. [From Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Jun 04 2009]
|
|
|
LINKS
| T. Mansour, Generalization of some identities involving the Fibonacci numbers
|
|
|
FORMULA
| T(n, k) = A028246(n+1, k+1)*4^(n-k) = Stirling-2(n+1, k+1)*k!*4^(n-k), see A008277 . - Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Oct 02 2005
|
|
|
EXAMPLE
| 1,
4,1,
16,12,2,
64,112,48,6,
256,960,800,240,24,
1024,7936,11520,6240,1440,120,
|
|
|
CROSSREFS
| Sequence in context: A143697 A117438 A075499 * A059991 A002568 A111661
Adjacent sequences: A099391 A099392 A099393 * A099395 A099396 A099397
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| Ralf Stephan, Oct 21 2004
|
| |
|
|
