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 | 1 |
| 1 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 7 |
| 5 | 11 |
| 6 | 26 |
| 7 | 51 |
| 8 | 95 |
| 9 | 161 |
| 10 | 319 |
| 11 | 806 |
| 12 | 1887 |
| 13 | 3895 |
| 14 | 6923 |
| 15 | 14993 |
| 16 | 42718 |
| 17 | 111333 |
| 18 | 237595 |
| 19 | 463841 |
| 20 | 1064503 |
| 21 | 3118414 |
| 22 | 8795307 |
| 23 | 19720385 |
| 24 | 41281849 |
| 25 | 103256791 |
| 26 | 314959814 |
| 27 | 905916621 |
| 28 | 2110081195 |
| 29 | 4499721541 |
| 30 | 11668017383 |