n | a(n) |
---|---|
1 | 0 |
2 | 7628 |
3 | 173792 |
4 | 1526520 |
5 | 8485264 |
6 | 33638540 |
7 | 111406336 |
8 | 311438060 |
9 | 777099536 |
10 | 1756270204 |
11 | 3735055528 |
12 | 7288245592 |
13 | 13670157716 |
14 | 24530310400 |
15 | 42135558056 |
16 | 69657825372 |
17 | 112605206044 |
18 | 176212748340 |
19 | 270847626492 |
20 | 404983049496 |
[0,7628,173792,1526520,8485264,33638540,111406336, 311438060,777099536,1756270204,3735055528, 7288245592,13670157716,24530310400,42135558056, 69657825372,112605206044,176212748340, 270847626492,404983049496] |