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 | 13 |
| 2 | 31 |
| 3 | 73 |
| 4 | 103 |
| 5 | 181 |
| 6 | 193 |
| 7 | 433 |
| 8 | 463 |
| 9 | 571 |
| 10 | 643 |
| 11 | 661 |
| 12 | 823 |
| 13 | 1021 |
| 14 | 1291 |
| 15 | 1621 |
| 16 | 1723 |
| 17 | 2083 |
| 18 | 2143 |
| 19 | 2341 |
| 20 | 2593 |
| 21 | 2713 |
| 22 | 3001 |
| 23 | 3253 |
| 24 | 3331 |
| 25 | 3361 |
| 26 | 3541 |
| 27 | 4231 |
| 28 | 4243 |
| 29 | 4423 |
| 30 | 4933 |
| 31 | 5233 |
| 32 | 5653 |
| 33 | 5881 |
| 34 | 6553 |
| 35 | 6571 |
| 36 | 6781 |
| 37 | 6871 |
| 38 | 6961 |
| 39 | 7951 |
| 40 | 8293 |
| 41 | 9283 |
| 42 | 9343 |
| 43 | 9433 |
| 44 | 9631 |
| 45 | 9931 |