n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 8 |
4 | 12 |
5 | 31 |
6 | 86 |
7 | 149 |
8 | 292 |
9 | 738 |
10 | 2359 |
11 | 3599 |
12 | 7827 |
13 | 14127 |
14 | 33455 |
15 | 105670 |
16 | 159980 |
17 | 313869 |
18 | 581542 |
19 | 1075123 |
20 | 2211132 |
21 | 7160312 |
22 | 10196031 |
23 | 19981105 |
24 | 34309067 |
25 | 63321797 |
26 | 106307767 |
27 | 216852432 |
28 | 656078224 |
29 | 932479907 |
[1,1,3,8,12,31,86,149,292,738,2359,3599,7827, 14127,33455,105670,159980,313869,581542,1075123, 2211132,7160312,10196031,19981105,34309067, 63321797,106307767,216852432,656078224,932479907] |