n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 765 |
3 | 27435 |
4 | 345415 |
5 | 2469420 |
6 | 12352956 |
7 | 48294610 |
8 | 157609530 |
9 | 447989355 |
10 | 1141711615 |
11 | 2663460261 |
12 | 5775482505 |
13 | 11777133550 |
14 | 22789550070 |
15 | 42150245460 |
16 | 74946834916 |
17 | 128723876325 |
18 | 214401953745 |
19 | 347453633935 |
20 | 549386792955 |
21 | 849592039296 |
22 | 1287617552320 |
23 | 1915941609990 |
24 | 2803320397950 |
25 | 4038796372975 |
[0,1,765,27435,345415,2469420,12352956,48294610, 157609530,447989355,1141711615,2663460261, 5775482505,11777133550,22789550070,42150245460, 74946834916,128723876325,214401953745, 347453633935,549386792955,849592039296, 1287617552320,1915941609990,2803320397950, 4038796372975] |