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 | 3 |
| 2 | 5 |
| 3 | 7 |
| 4 | 9 |
| 5 | 11 |
| 6 | 20 |
| 7 | 28 |
| 8 | 62 |
| 9 | 161 |
| 10 | 204 |
| 11 | 471 |
| 12 | 505 |
| 13 | 881 |
| 14 | 1810 |
| 15 | 1812 |
| 16 | 2506 |
| 17 | 3321 |
| 18 | 6809 |
| 19 | 9272 |
| 20 | 15131 |
| 21 | 17449 |
| 22 | 25250 |
| 23 | 27989 |
| 24 | 36082 |
| 25 | 53309 |
| 26 | 64970 |
| 27 | 66354 |
| 28 | 69646 |
| 29 | 96080 |
| 30 | 176059 |
| 31 | 451810 |
| 32 | 549633 |