n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 384 |
3 | 13122 |
4 | 163840 |
5 | 1171875 |
6 | 5878656 |
7 | 23059204 |
8 | 75497472 |
9 | 215233605 |
10 | 550000000 |
11 | 1286153286 |
12 | 2794881024 |
13 | 5710115047 |
14 | 11068417920 |
15 | 20503125000 |
16 | 36507222016 |
17 | 62781816969 |
18 | 104689625472 |
19 | 169835630410 |
20 | 268800000000 |
21 | 416051452971 |
22 | 631072545664 |
[0,1,384,13122,163840,1171875,5878656,23059204, 75497472,215233605,550000000,1286153286, 2794881024,5710115047,11068417920,20503125000, 36507222016,62781816969,104689625472,169835630410, 268800000000,416051452971,631072545664] |