n | a(n) |
---|---|
0 | 1 |
1 | 9 |
2 | 15 |
3 | 107 |
4 | 479 |
5 | 3103 |
6 | 18031 |
7 | 117727 |
8 | 755599 |
9 | 5064687 |
10 | 34093263 |
11 | 234114735 |
12 | 1620229839 |
13 | 11340760367 |
14 | 79951746767 |
15 | 567945479727 |
16 | 4058390653647 |
17 | 29163273207087 |
18 | 210568996777167 |
19 | 1527068200329007 |
20 | 11117641676731087 |
[1,9,15,107,479,3103,18031,117727,755599,5064687, 34093263,234114735,1620229839,11340760367, 79951746767,567945479727,4058390653647, 29163273207087,210568996777167,1527068200329007, 11117641676731087] |