n | a(n) |
---|---|
1 | 0 |
2 | 9 |
3 | 75 |
4 | 475 |
5 | 2695 |
6 | 14443 |
7 | 74831 |
8 | 379459 |
9 | 1896807 |
10 | 9388731 |
11 | 46152447 |
12 | 225762931 |
13 | 1100476759 |
14 | 5350600939 |
15 | 25966867823 |
16 | 125848830499 |
17 | 609324773703 |
18 | 2948038268955 |
19 | 14255607687903 |
20 | 68907738083539 |
21 | 332985156888631 |
[0,9,75,475,2695,14443,74831,379459,1896807, 9388731,46152447,225762931,1100476759,5350600939, 25966867823,125848830499,609324773703, 2948038268955,14255607687903,68907738083539, 332985156888631] |