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 | 28 |
| 2 | 68 |
| 3 | 164 |
| 4 | 396 |
| 5 | 956 |
| 6 | 2308 |
| 7 | 5572 |
| 8 | 13452 |
| 9 | 32476 |
| 10 | 78404 |
| 11 | 189284 |
| 12 | 456972 |
| 13 | 1103228 |
| 14 | 2663428 |
| 15 | 6430084 |
| 16 | 15523596 |
| 17 | 37477276 |
| 18 | 90478148 |
| 19 | 218433572 |
| 20 | 527345292 |
| 21 | 1273124156 |
| 22 | 3073593604 |
| 23 | 7420311364 |
| 24 | 17914216332 |
| 25 | 43248744028 |
| 26 | 104411704388 |