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 | 110 |
| 2 | 3030 |
| 3 | 71501 |
| 4 | 1513357 |
| 5 | 29732625 |
| 6 | 550056273 |
| 7 | 9704449810 |
| 8 | 164528513926 |
| 9 | 2699295015987 |
| 10 | 43085122777927 |
| 11 | 671924748332545 |
| 12 | 10272030561992753 |
| 13 | 154341402425744006 |
| 14 | 2284337350261887830 |
| 15 | 33367505535194365713 |