n | a(n) |
---|---|
1 | 28 |
2 | 189 |
3 | 959 |
4 | 4648 |
5 | 22323 |
6 | 107009 |
7 | 512764 |
8 | 2456853 |
9 | 11771543 |
10 | 56400904 |
11 | 270233019 |
12 | 1294764233 |
13 | 6203588188 |
14 | 29723176749 |
15 | 142412295599 |
16 | 682338301288 |
17 | 3269279210883 |
18 | 15664057753169 |
19 | 75051009555004 |
20 | 359590990021893 |
21 | 1722903940554503 |
22 | 8254928712750664 |
[28,189,959,4648,22323,107009,512764,2456853, 11771543,56400904,270233019,1294764233,6203588188, 29723176749,142412295599,682338301288, 3269279210883,15664057753169,75051009555004, 359590990021893,1722903940554503,8254928712750664] |