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) |
|---|---|
| 0 | 7 |
| 1 | 8 |
| 2 | 12 |
| 3 | 28 |
| 4 | 92 |
| 5 | 348 |
| 6 | 1372 |
| 7 | 5468 |
| 8 | 21852 |
| 9 | 87388 |
| 10 | 349532 |
| 11 | 1398108 |
| 12 | 5592412 |
| 13 | 22369628 |
| 14 | 89478492 |
| 15 | 357913948 |
| 16 | 1431655772 |
| 17 | 5726623068 |
| 18 | 22906492252 |
| 19 | 91625968988 |
| 20 | 366503875932 |
| 21 | 1466015503708 |
| 22 | 5864062014812 |
| 23 | 23456248059228 |
| 24 | 93824992236892 |
| 25 | 375299968947548 |