n | a(n) |
---|---|
3 | 1 |
4 | 1 |
5 | 5 |
6 | 7 |
7 | 33 |
8 | 57 |
9 | 279 |
10 | 561 |
11 | 2895 |
12 | 6555 |
13 | 35685 |
14 | 89055 |
15 | 509985 |
16 | 1381905 |
17 | 8294895 |
18 | 24137505 |
19 | 151335135 |
20 | 468934515 |
21 | 3061162125 |
22 | 10033419375 |
23 | 68000295825 |
24 | 234484536825 |
25 | 1645756410375 |
26 | 5943863027025 |
27 | 43105900812975 |
28 | 162446292283275 |
29 | 1214871076343925 |
30 | 4761954230608575 |
[1,1,5,7,33,57,279,561,2895,6555,35685,89055, 509985,1381905,8294895,24137505,151335135, 468934515,3061162125,10033419375,68000295825, 234484536825,1645756410375,5943863027025, 43105900812975,162446292283275,1214871076343925, 4761954230608575] |