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 | 3 |
| 3 | 5 |
| 4 | 7 |
| 5 | 12 |
| 6 | 20 |
| 7 | 35 |
| 8 | 65 |
| 9 | 122 |
| 10 | 237 |
| 11 | 448 |
| 12 | 846 |
| 13 | 1629 |
| 14 | 3157 |
| 15 | 6159 |
| 16 | 12052 |
| 17 | 23484 |
| 18 | 45731 |
| 19 | 89394 |
| 20 | 175742 |
| 21 | 346214 |
| 22 | 681850 |
| 23 | 1344838 |
| 24 | 2657654 |
| 25 | 5253640 |
| 26 | 10374991 |
| 27 | 20471626 |
| 28 | 40401929 |
| 29 | 79871387 |
| 30 | 158182899 |
| 31 | 313402605 |
| 32 | 620776215 |
| 33 | 1228390086 |
| 34 | 2430853648 |