n | a(n) |
---|---|
1 | 0 |
2 | 4 |
3 | 18 |
4 | 27 |
5 | 49 |
6 | 72 |
7 | 81 |
8 | 94 |
9 | 499 |
10 | 994 |
11 | 4999 |
12 | 9994 |
13 | 49999 |
14 | 99994 |
15 | 499999 |
16 | 999994 |
17 | 4999999 |
18 | 9999994 |
19 | 49999999 |
20 | 99999994 |
21 | 499999999 |
22 | 999999994 |
23 | 4999999999 |
24 | 9999999994 |
25 | 49999999999 |
26 | 99999999994 |
27 | 499999999999 |
28 | 999999999994 |
29 | 4999999999999 |
30 | 9999999999994 |
31 | 49999999999999 |
[0,4,18,27,49,72,81,94,499,994,4999,9994,49999, 99994,499999,999994,4999999,9999994,49999999, 99999994,499999999,999999994,4999999999, 9999999994,49999999999,99999999994,499999999999, 999999999994,4999999999999,9999999999994, 49999999999999] |