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 | 251 |
| 2 | 487 |
| 3 | 1549 |
| 4 | 1667 |
| 5 | 2729 |
| 6 | 3083 |
| 7 | 3319 |
| 8 | 3673 |
| 9 | 4027 |
| 10 | 5443 |
| 11 | 6151 |
| 12 | 6269 |
| 13 | 6977 |
| 14 | 7213 |
| 15 | 7331 |
| 16 | 8039 |
| 17 | 8629 |
| 18 | 8747 |
| 19 | 9337 |
| 20 | 10163 |
| 21 | 10399 |
| 22 | 10753 |
| 23 | 11579 |
| 24 | 11933 |
| 25 | 12641 |
| 26 | 14057 |
| 27 | 14293 |
| 28 | 14411 |
| 29 | 15473 |
| 30 | 16063 |
| 31 | 16417 |
| 32 | 16889 |
| 33 | 17597 |
| 34 | 18541 |
| 35 | 19013 |
| 36 | 19249 |
| 37 | 19603 |
| 38 | 21019 |
| 39 | 21491 |
| 40 | 21727 |