n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 13 |
3 | 41 |
4 | 125 |
5 | 367 |
6 | 1111 |
7 | 3395 |
8 | 10491 |
9 | 32670 |
10 | 102231 |
11 | 320990 |
12 | 1010196 |
13 | 3184138 |
14 | 10046921 |
15 | 31723592 |
16 | 100216745 |
17 | 316694005 |
18 | 1001003332 |
19 | 3164437425 |
20 | 10004650118 |
21 | 31632790244 |
22 | 100021566157 |
23 | 316274216762 |
24 | 1000100055684 |
[1,4,13,41,125,367,1111,3395,10491,32670,102231, 320990,1010196,3184138,10046921,31723592, 100216745,316694005,1001003332,3164437425, 10004650118,31632790244,100021566157,316274216762, 1000100055684] |