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 | 37 |
| 3 | 61 |
| 4 | 181 |
| 5 | 373 |
| 6 | 541 |
| 7 | 853 |
| 8 | 1237 |
| 9 | 1381 |
| 10 | 1693 |
| 11 | 1861 |
| 12 | 2221 |
| 13 | 3037 |
| 14 | 3733 |
| 15 | 7237 |
| 16 | 7933 |
| 17 | 8293 |
| 18 | 9421 |
| 19 | 12781 |
| 20 | 14173 |
| 21 | 14653 |
| 22 | 16141 |
| 23 | 19333 |
| 24 | 25933 |
| 25 | 27901 |
| 26 | 28573 |
| 27 | 30637 |
| 28 | 34981 |
| 29 | 36493 |
| 30 | 38821 |
| 31 | 41221 |
| 32 | 44533 |
| 33 | 46237 |
| 34 | 49741 |
| 35 | 52453 |
| 36 | 60037 |
| 37 | 70237 |
| 38 | 73453 |
| 39 | 87037 |