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 | 415 |
| 2 | 1114 |
| 3 | 2413 |
| 4 | 4774 |
| 5 | 8989 |
| 6 | 16345 |
| 7 | 28844 |
| 8 | 49489 |
| 9 | 82648 |
| 10 | 134509 |
| 11 | 213640 |
| 12 | 331669 |
| 13 | 504100 |
| 14 | 751282 |
| 15 | 1099549 |
| 16 | 1582550 |
| 17 | 2242789 |
| 18 | 3133396 |
| 19 | 4320151 |
| 20 | 5883784 |
| 21 | 7922575 |
| 22 | 10555279 |
| 23 | 13924402 |
| 24 | 18199855 |
| 25 | 23583014 |
| 26 | 30311215 |
| 27 | 38662714 |
| 28 | 48962143 |
| 29 | 61586494 |