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 | 7 |
| 2 | 13 |
| 3 | 43 |
| 4 | 223 |
| 5 | 757 |
| 6 | 883 |
| 7 | 2143 |
| 8 | 2269 |
| 9 | 2521 |
| 10 | 2917 |
| 11 | 3253 |
| 12 | 3967 |
| 13 | 4297 |
| 14 | 4423 |
| 15 | 6229 |
| 16 | 6427 |
| 17 | 6679 |
| 18 | 7621 |
| 19 | 7741 |
| 20 | 10429 |
| 21 | 11353 |
| 22 | 12739 |
| 23 | 14593 |
| 24 | 14929 |
| 25 | 15259 |
| 26 | 15541 |
| 27 | 15937 |
| 28 | 16981 |
| 29 | 17449 |
| 30 | 17911 |
| 31 | 21187 |
| 32 | 23899 |
| 33 | 24697 |
| 34 | 25633 |
| 35 | 27481 |
| 36 | 28789 |
| 37 | 29611 |
| 38 | 29833 |
| 39 | 30253 |
| 40 | 30703 |