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 | 10320 |
| 2 | 33042 |
| 3 | 112196 |
| 4 | 385738 |
| 5 | 1324872 |
| 6 | 4542671 |
| 7 | 15269184 |
| 8 | 50963540 |
| 9 | 171784096 |
| 10 | 583245999 |
| 11 | 1978627688 |
| 12 | 6707590534 |
| 13 | 22709921860 |
| 14 | 76722468914 |
| 15 | 259180579024 |
| 16 | 877068284264 |
| 17 | 2969801621944 |
| 18 | 10051964251804 |
| 19 | 34016225117956 |