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 | 43 |
| 2 | 109 |
| 3 | 2221 |
| 4 | 2423 |
| 5 | 3433 |
| 6 | 4241 |
| 7 | 5857 |
| 8 | 7069 |
| 9 | 7877 |
| 10 | 8887 |
| 11 | 10099 |
| 12 | 10987 |
| 13 | 76543 |
| 14 | 102101 |
| 15 | 108107 |
| 16 | 112111 |
| 17 | 114113 |
| 18 | 124123 |
| 19 | 148147 |
| 20 | 154153 |
| 21 | 160159 |
| 22 | 172171 |
| 23 | 180179 |
| 24 | 192191 |
| 25 | 198197 |
| 26 | 202201 |
| 27 | 208207 |
| 28 | 210209 |
| 29 | 214213 |
| 30 | 238237 |
| 31 | 244243 |
| 32 | 262261 |