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 | 1 |
| 2 | 205 |
| 3 | 3895 |
| 4 | 8525 |
| 5 | 17050 |
| 6 | 71951 |
| 7 | 74005 |
| 8 | 148010 |
| 9 | 359755 |
| 10 | 451825 |
| 11 | 903650 |
| 12 | 1628110 |
| 13 | 1632005 |
| 14 | 1798775 |
| 15 | 2346674 |
| 16 | 3597550 |
| 17 | 4218285 |
| 18 | 8436570 |
| 19 | 8993875 |
| 20 | 14749955 |
| 21 | 17987750 |
| 22 | 50471410 |
| 23 | 59071771 |
| 24 | 92802270 |
| 25 | 95335075 |
| 26 | 190670150 |
| 27 | 280249145 |
| 28 | 295358855 |
| 29 | 451356495 |
| 30 | 481068170 |