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 | 2304 |
| 2 | 9476 |
| 3 | 47058 |
| 4 | 259372 |
| 5 | 1536814 |
| 6 | 9643562 |
| 7 | 63558566 |
| 8 | 437500380 |
| 9 | 3130270224 |
| 10 | 23174548666 |
| 11 | 176740657340 |
| 12 | 1382652697282 |
| 13 | 11052082053262 |
| 14 | 89954475408222 |
| 15 | 743275585245898 |
| 16 | 6219118726337532 |
| 17 | 52583297643941856 |
| 18 | 448492643088144992 |
| 19 | 3853319870967662784 |