|
| |
|
|
A099045
|
|
(3*0^n+4^n*binomial(2n,n))/4.
|
|
2
| |
|
|
1, 2, 24, 320, 4480, 64512, 946176, 14057472, 210862080, 3186360320, 48432676864, 739699064832, 11342052327424, 174493112729600, 2692179453542400, 41639042214789120, 645405154329231360, 10022762396642181120
(list; graph; refs; listen; history; internal format)
|
| |
| |
|
|
