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 | 7 |
| 3 | 15 |
| 4 | 24 |
| 5 | 36 |
| 6 | 52 |
| 7 | 70 |
| 8 | 93 |
| 9 | 121 |
| 10 | 154 |
| 11 | 186 |
| 12 | 225 |
| 13 | 271 |
| 14 | 323 |
| 15 | 385 |
| 16 | 450 |
| 17 | 515 |
| 18 | 606 |
| 19 | 684 |
| 20 | 788 |
| 21 | 865 |
| 22 | 977 |
| 23 | 1091 |
| 24 | 1201 |
| 25 | 1361 |