n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 8 |
3 | 27 |
4 | 89 |
5 | 257 |
6 | 784 |
7 | 2421 |
8 | 7336 |
9 | 22324 |
10 | 68147 |
11 | 207549 |
12 | 632177 |
13 | 1926608 |
14 | 5870089 |
15 | 17884476 |
16 | 54493120 |
17 | 166034731 |
18 | 505883825 |
19 | 1541369745 |
20 | 4696373312 |
21 | 14309268413 |
22 | 43598614528 |
23 | 132839740908 |
24 | 404746601923 |
25 | 1233213978037 |
[1,4,8,27,89,257,784,2421,7336,22324,68147,207549, 632177,1926608,5870089,17884476,54493120, 166034731,505883825,1541369745,4696373312, 14309268413,43598614528,132839740908,404746601923, 1233213978037] |