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) |
|---|---|
| 2 | 89 |
| 3 | 773 |
| 4 | 3611 |
| 5 | 12179 |
| 6 | 33349 |
| 7 | 78889 |
| 8 | 167383 |
| 9 | 326471 |
| 10 | 595409 |
| 11 | 1027949 |
| 12 | 1695539 |
| 13 | 2690843 |
| 14 | 4131581 |
| 15 | 6164689 |
| 16 | 8970799 |
| 17 | 12769039 |
| 18 | 17822153 |
| 19 | 24441941 |
| 20 | 32995019 |
| 21 | 43908899 |
| 22 | 57678389 |
| 23 | 74872313 |
| 24 | 96140551 |
| 25 | 122221399 |
| 26 | 153949249 |
| 27 | 192262589 |
| 28 | 238212323 |
| 29 | 292970411 |
| 30 | 357838829 |