n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 376 |
4 | 4644 |
5 | 23920 |
6 | 81876 |
7 | 219384 |
8 | 499544 |
9 | 1014160 |
10 | 1885960 |
11 | 3280968 |
12 | 5402716 |
13 | 8516848 |
14 | 12929804 |
15 | 19034408 |
16 | 27263040 |
17 | 38165376 |
18 | 52323744 |
19 | 70476456 |
20 | 93380724 |
21 | 121997440 |
22 | 157284564 |
23 | 200461624 |
24 | 252714168 |
25 | 315558528 |
26 | 390435608 |
27 | 479198872 |
28 | 583573276 |
29 | 705791856 |
30 | 847893292 |
[0,0,376,4644,23920,81876,219384,499544,1014160, 1885960,3280968,5402716,8516848,12929804,19034408, 27263040,38165376,52323744,70476456,93380724, 121997440,157284564,200461624,252714168,315558528, 390435608,479198872,583573276,705791856,847893292] |