n | a(n) |
---|---|
1 | 2 |
2 | 7 |
3 | 19 |
4 | 48 |
5 | 118 |
6 | 287 |
7 | 695 |
8 | 1680 |
9 | 4058 |
10 | 9799 |
11 | 23659 |
12 | 57120 |
13 | 137902 |
14 | 332927 |
15 | 803759 |
16 | 1940448 |
17 | 4684658 |
18 | 11309767 |
19 | 27304195 |
20 | 65918160 |
21 | 159140518 |
22 | 384199199 |
23 | 927538919 |
24 | 2239277040 |
25 | 5406093002 |
26 | 13051463047 |
27 | 31509019099 |
28 | 76069501248 |
29 | 183648021598 |
30 | 443365544447 |
[2,7,19,48,118,287,695,1680,4058,9799,23659,57120, 137902,332927,803759,1940448,4684658,11309767, 27304195,65918160,159140518,384199199,927538919, 2239277040,5406093002,13051463047,31509019099, 76069501248,183648021598,443365544447] |