n | a(n) |
---|---|
7 | 1 |
8 | 12 |
9 | 102 |
10 | 720 |
11 | 4587 |
12 | 27326 |
13 | 155571 |
14 | 858023 |
15 | 4623388 |
16 | 24488768 |
17 | 128053146 |
18 | 663054996 |
19 | 3407483161 |
20 | 17409523182 |
21 | 88545747922 |
22 | 448749879028 |
23 | 2267921345677 |
24 | 11436557773522 |
25 | 57571373075875 |
26 | 289413549581585 |
27 | 1453301573317896 |
28 | 7291464343122268 |
29 | 36557211011698580 |
[1,12,102,720,4587,27326,155571,858023,4623388, 24488768,128053146,663054996,3407483161, 17409523182,88545747922,448749879028, 2267921345677,11436557773522,57571373075875, 289413549581585,1453301573317896,7291464343122268, 36557211011698580] |