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 | 1 |
| 1 | 283 |
| 2 | 3847 |
| 3 | 20996 |
| 4 | 74228 |
| 5 | 203084 |
| 6 | 469053 |
| 7 | 960396 |
| 8 | 1797086 |
| 9 | 3135610 |
| 10 | 5173909 |
| 11 | 8156188 |
| 12 | 12377846 |
| 13 | 18190320 |
| 14 | 26005929 |
| 15 | 36302854 |
| 16 | 49629820 |
| 17 | 66611231 |
| 18 | 87951744 |
| 19 | 114441450 |
| 20 | 146960432 |
| 21 | 186483973 |
| 22 | 234087084 |
| 23 | 290949702 |
| 24 | 358361266 |
| 25 | 437725888 |
| 26 | 530566933 |
| 27 | 638532124 |
| 28 | 763398291 |
| 29 | 907076258 |