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 | 793 |
| 2 | 16354 |
| 3 | 133274 |
| 4 | 1889210 |
| 5 | 6598370 |
| 6 | 28964378 |
| 7 | 71183450 |
| 8 | 195081770 |
| 9 | 742859210 |
| 10 | 1482327002 |
| 11 | 3453230090 |
| 12 | 7315830650 |
| 13 | 11071467290 |
| 14 | 17100578378 |
| 15 | 32943576458 |
| 16 | 64344894770 |
| 17 | 93700908002 |
| 18 | 141978756530 |
| 19 | 218558666090 |
| 20 | 279434510210 |