OFFSET
0,3
COMMENTS
See A303988 for details, references and links.
FORMULA
EXAMPLE
The triangle T(n, k) begins:
n\k 0 1 2 3 4 5 6
0: 1
1: 1 4
2: 8 24 96
3: 216 54 4320 864
4: 1728 8640 1728 60480 48384
5: 216000 216000 1512000 1512000 6048000 1209600
6: 24000 56000 21000 324000 18144000 39916800 5702400
...
row n = 7: 8232000 8232000 9261000 55566000 9779616000 1955923200 25427001600 25427001600,
row n = 8: 65856000 197568000 197568000 19559232000 19559232000 50854003200 4623091200 50854003200 203416012800,
row n = 9: 16003008000 16003008000 176033088000 176033088000 2288430144000 35206617600 457686028800 457686028800 31122649958400 31122649958400,
...
For the first rationals c_{n,k} see A303988.
CROSSREFS
KEYWORD
AUTHOR
Wolfdieter Lang, May 16 2018
STATUS
approved