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 | 5 |
| 2 | 173 |
| 3 | 2467 |
| 4 | 17489 |
| 5 | 81401 |
| 6 | 287965 |
| 7 | 840743 |
| 8 | 2130497 |
| 9 | 4842829 |
| 10 | 10101101 |
| 11 | 19649675 |
| 12 | 36082513 |
| 13 | 63122177 |
| 14 | 105954269 |
| 15 | 171622351 |
| 16 | 269488385 |
| 17 | 411763733 |
| 18 | 614115757 |
| 19 | 896355059 |
| 20 | 1283208401 |
| 21 | 1805182345 |
| 22 | 2499522653 |
| 23 | 3411274487 |
| 24 | 4594448449 |