n | a(n) |
---|---|
0 | 4 |
1 | 4 |
2 | 9 |
3 | 29 |
4 | 119 |
5 | 599 |
6 | 3599 |
7 | 25199 |
8 | 201599 |
9 | 1814399 |
10 | 18143999 |
11 | 199583999 |
12 | 2395007999 |
13 | 31135103999 |
14 | 435891455999 |
15 | 6538371839999 |
16 | 104613949439999 |
17 | 1778437140479999 |
18 | 32011868528639999 |
19 | 608225502044159999 |
[4,4,9,29,119,599,3599,25199,201599,1814399, 18143999,199583999,2395007999,31135103999, 435891455999,6538371839999,104613949439999, 1778437140479999,32011868528639999, 608225502044159999] |