This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 15 |
| 2 | 19 |
| 3 | 150 |
| 4 | 182 |
| 5 | 191 |
| 6 | 195 |
| 7 | 199 |
| 8 | 1500 |
| 9 | 1819 |
| 10 | 1950 |
| 11 | 1981 |
| 12 | 1991 |
| 13 | 1995 |
| 14 | 1999 |
| 15 | 15000 |
| 16 | 18182 |
| 17 | 19091 |
| 18 | 19500 |
| 19 | 19802 |
| 20 | 19901 |
| 21 | 19950 |
| 22 | 19981 |
| 23 | 19991 |
| 24 | 19995 |
| 25 | 19999 |
| 26 | 150000 |
| 27 | 181819 |
| 28 | 195000 |
| 29 | 198020 |
| 30 | 199010 |
| 31 | 199091 |
| 32 | 199500 |
| 33 | 199801 |
| 34 | 199901 |
| 35 | 199950 |
| 36 | 199981 |
| 37 | 199991 |
| 38 | 199995 |