n | a(n) |
---|---|
9 | 40320 |
10 | 4032000 |
11 | 268329600 |
12 | 15328051200 |
13 | 823379356800 |
14 | 43413497487360 |
15 | 2298646350000000 |
16 | 123818753182924800 |
17 | 6837492347913427200 |
18 | 388855261570122547200 |
19 | 22836250136299660220160 |
20 | 1386932177757615390720000 |
21 | 87175183432121364413433600 |
22 | 5671938409008942797114572800 |
[40320,4032000,268329600,15328051200,823379356800, 43413497487360,2298646350000000, 123818753182924800,6837492347913427200, 388855261570122547200,22836250136299660220160, 1386932177757615390720000, 87175183432121364413433600, 5671938409008942797114572800] |