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 | 31 |
| 2 | 527 |
| 3 | 6510 |
| 4 | 65162 |
| 5 | 559271 |
| 6 | 4259276 |
| 7 | 29444575 |
| 8 | 187761854 |
| 9 | 1117650502 |
| 10 | 6267006128 |
| 11 | 33341859350 |
| 12 | 169281687755 |
| 13 | 824110662334 |
| 14 | 3862233690794 |
| 15 | 17483338870409 |
| 16 | 76663232042998 |
| 17 | 326438219863590 |