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 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 6 |
| 5 | 9 |
| 6 | 18 |
| 7 | 29 |
| 8 | 56 |
| 9 | 97 |
| 10 | 186 |
| 11 | 337 |
| 12 | 657 |
| 13 | 1238 |
| 14 | 2442 |
| 15 | 4768 |
| 16 | 9569 |
| 17 | 19174 |
| 18 | 39151 |
| 19 | 80154 |
| 20 | 166211 |
| 21 | 346239 |
| 22 | 727853 |
| 23 | 1537611 |
| 24 | 3270710 |
| 25 | 6989669 |
| 26 | 15018389 |
| 27 | 32405378 |
| 28 | 70230238 |
| 29 | 152772075 |
| 30 | 333552711 |
| 31 | 730632928 |
| 32 | 1605459844 |
| 33 | 3537861659 |
| 34 | 7817447580 |
| 35 | 17317397837 |