Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 19 |
2 | 29 |
3 | -1 |
4 | 499 |
5 | 59 |
6 | -1 |
7 | 79 |
8 | 89 |
9 | -1 |
10 | 109 |
11 | 1199999 |
12 | -1 |
13 | 139 |
14 | 149 |
15 | -1 |
16 | 1699 |
17 | 179 |
18 | -1 |
19 | 199 |
20 | 2099 |
21 | -1 |
22 | 229 |
23 | 239 |
24 | -1 |
25 | 25999 |
26 | 269 |
27 | -1 |
28 | 289999 |
29 | 2999 |
30 | -1 |
31 | 319999999999999999999999999999 |
32 | 3299 |
33 | -1 |
34 | 349 |
35 | 359 |
36 | -1 |
37 | 379 |
38 | 389 |
39 | -1 |
40 | 409 |
41 | 419 |
42 | -1 |
43 | 439 |
44 | 449 |
45 | -1 |
[19,29,-1,499,59,-1,79,89,-1,109,1199999,-1,139, 149,-1,1699,179,-1,199,2099,-1,229,239,-1,25999, 269,-1,289999,2999,-1, 319999999999999999999999999999,3299,-1,349,359,-1, 379,389,-1,409,419,-1,439,449,-1] |