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 | 1 |
| 2 | 127 |
| 3 | 3473 |
| 4 | 19313 |
| 5 | 30353 |
| 6 | 226703 |
| 7 | 230777 |
| 8 | 345023 |
| 9 | 929783 |
| 10 | 1790159 |
| 11 | 1878073 |
| 12 | 2569337 |
| 13 | 3441743 |
| 14 | 4213511 |
| 15 | 8026103 |
| 16 | 9770153 |
| 17 | 19139183 |
| 18 | 24261623 |
| 19 | 30652223 |
| 20 | 35482433 |
| 21 | 38044223 |
| 22 | 40642103 |
| 23 | 55015793 |
| 24 | 65046479 |
| 25 | 67411121 |
| 26 | 69601193 |
| 27 | 119611073 |