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 | 1 |
| 2 | 61 |
| 3 | 139 |
| 4 | 1009 |
| 5 | 1279 |
| 6 | 2281 |
| 7 | 3109 |
| 8 | 3571 |
| 9 | 4591 |
| 10 | 6361 |
| 11 | 8419 |
| 12 | 13399 |
| 13 | 14341 |
| 14 | 17359 |
| 15 | 19531 |
| 16 | 23029 |
| 17 | 35251 |
| 18 | 39901 |
| 19 | 44839 |
| 20 | 46549 |
| 21 | 51871 |
| 22 | 55579 |
| 23 | 61381 |
| 24 | 73849 |
| 25 | 76039 |
| 26 | 102241 |
| 27 | 110059 |
| 28 | 135241 |
| 29 | 153469 |
| 30 | 156619 |