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 | 1131 |
| 2 | 7829 |
| 3 | 25141 |
| 4 | 58113 |
| 5 | 111791 |
| 6 | 191221 |
| 7 | 301449 |
| 8 | 447521 |
| 9 | 634483 |
| 10 | 867381 |
| 11 | 1151261 |
| 12 | 1491169 |
| 13 | 1892151 |
| 14 | 2359253 |
| 15 | 2897521 |
| 16 | 3512001 |
| 17 | 4207739 |
| 18 | 4989781 |
| 19 | 5863173 |
| 20 | 6832961 |
| 21 | 7904191 |
| 22 | 9081909 |
| 23 | 10371161 |
| 24 | 11776993 |
| 25 | 13304451 |