n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 60 |
6 | 1701 |
7 | 14952 |
8 | 81228 |
9 | 331884 |
10 | 1116675 |
11 | 3256407 |
12 | 8500734 |
13 | 20306286 |
14 | 45093048 |
15 | 94189095 |
16 | 186736368 |
17 | 353904096 |
18 | 644842674 |
19 | 1134910242 |
20 | 1936817820 |
21 | 3215467584 |
22 | 5207403663 |
23 | 8245956642 |
24 | 12793342716 |
25 | 19481177100 |
26 | 29161079805 |
27 | 42967291185 |
28 | 62393475690 |
[0,0,0,0,0,60,1701,14952,81228,331884,1116675, 3256407,8500734,20306286,45093048,94189095, 186736368,353904096,644842674,1134910242, 1936817820,3215467584,5207403663,8245956642, 12793342716,19481177100,29161079805,42967291185, 62393475690] |