n | a(n) |
---|---|
6 | 1 |
7 | 7 |
8 | 42 |
9 | 210 |
10 | 985 |
11 | 4400 |
12 | 18944 |
13 | 80067 |
14 | 333431 |
15 | 1372364 |
16 | 5607350 |
17 | 22788432 |
18 | 92221903 |
19 | 372094575 |
20 | 1498066156 |
21 | 6021295070 |
22 | 24172138331 |
23 | 96949953648 |
24 | 388584438750 |
25 | 1556689868075 |
26 | 6233817797545 |
27 | 24956454853128 |
28 | 99889360100264 |
29 | 399748052249200 |
30 | 1599564125648941 |
[1,7,42,210,985,4400,18944,80067,333431,1372364, 5607350,22788432,92221903,372094575,1498066156, 6021295070,24172138331,96949953648,388584438750, 1556689868075,6233817797545,24956454853128, 99889360100264,399748052249200,1599564125648941] |