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 | 33 |
| 3 | 141 |
| 4 | 2442 |
| 5 | 50205 |
| 6 | 208857 |
| 7 | 1017701 |
| 8 | 21138612 |
| 9 | 100444001 |
| 10 | 1000450010 |
| 11 | 10006102001 |
| 12 | 210016912512 |
| 13 | 1000098150001 |
| 14 | 20000708510002 |
| 15 | 500000242000005 |
| 16 | 2110000787875112 |
| 17 | 10000014238000001 |
| 18 | 200000094935500002 |