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) |
|---|---|
| 0 | 3 |
| 1 | 4 |
| 2 | 11 |
| 3 | 15 |
| 4 | 101 |
| 5 | 116 |
| 6 | 333 |
| 7 | 449 |
| 8 | 3027 |
| 9 | 3476 |
| 10 | 9979 |
| 11 | 13455 |
| 12 | 90709 |
| 13 | 104164 |
| 14 | 299037 |
| 15 | 403201 |
| 16 | 2718243 |
| 17 | 3121444 |
| 18 | 8961131 |
| 19 | 12082575 |
| 20 | 81456581 |
| 21 | 93539156 |
| 22 | 268534893 |
| 23 | 362074049 |
| 24 | 2440979187 |
| 25 | 2803053236 |
| 26 | 8047085659 |