n | a(n) |
---|---|
4 | 0 |
5 | 98 |
6 | 34778 |
7 | 290306 |
8 | 1182610 |
9 | 3573766 |
10 | 9017466 |
11 | 20075266 |
12 | 40694834 |
13 | 76649830 |
14 | 136042186 |
15 | 229866786 |
16 | 372638546 |
17 | 583081894 |
18 | 884882650 |
19 | 1307502306 |
20 | 1887054706 |
21 | 2667245126 |
[0,98,34778,290306,1182610,3573766,9017466, 20075266,40694834,76649830,136042186,229866786, 372638546,583081894,884882650,1307502306, 1887054706,2667245126] |