n | a(n) |
---|---|
2 | 3 |
3 | 12 |
4 | 40 |
5 | 104 |
6 | 279 |
7 | 654 |
8 | 1577 |
9 | 3560 |
10 | 8109 |
11 | 17734 |
12 | 39205 |
13 | 83996 |
14 | 181043 |
15 | 382856 |
16 | 811084 |
17 | 1694468 |
18 | 3545864 |
19 | 7340308 |
20 | 15205768 |
21 | 31259422 |
22 | 64253260 |
23 | 131314502 |
24 | 268332975 |
25 | 545854344 |
26 | 1110087515 |
27 | 2250051262 |
28 | 4558868119 |
29 | 9213241988 |
30 | 18613362500 |
31 | 37529700206 |
[3,12,40,104,279,654,1577,3560,8109,17734,39205, 83996,181043,382856,811084,1694468,3545864, 7340308,15205768,31259422,64253260,131314502, 268332975,545854344,1110087515,2250051262, 4558868119,9213241988,18613362500,37529700206] |