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 | 0 |
| 1 | 2 |
| 2 | 4 |
| 3 | 10 |
| 4 | 16 |
| 5 | 34 |
| 6 | 52 |
| 7 | 106 |
| 8 | 160 |
| 9 | 322 |
| 10 | 484 |
| 11 | 970 |
| 12 | 1456 |
| 13 | 2914 |
| 14 | 4372 |
| 15 | 8746 |
| 16 | 13120 |
| 17 | 26242 |
| 18 | 39364 |
| 19 | 78730 |
| 20 | 118096 |
| 21 | 236194 |
| 22 | 354292 |
| 23 | 708586 |
| 24 | 1062880 |
| 25 | 2125762 |
| 26 | 3188644 |
| 27 | 6377290 |
| 28 | 9565936 |
| 29 | 19131874 |
| 30 | 28697812 |
| 31 | 57395626 |
| 32 | 86093440 |
| 33 | 172186882 |
| 34 | 258280324 |
| 35 | 516560650 |
| 36 | 774840976 |