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 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 5 |
| 6 | 10 |
| 7 | 17 |
| 8 | 34 |
| 9 | 62 |
| 10 | 123 |
| 11 | 230 |
| 12 | 462 |
| 13 | 879 |
| 14 | 1772 |
| 15 | 3427 |
| 16 | 6930 |
| 17 | 13562 |
| 18 | 27501 |
| 19 | 54338 |
| 20 | 110449 |
| 21 | 219962 |
| 22 | 448054 |
| 23 | 898146 |
| 24 | 1833248 |
| 25 | 3694974 |
| 26 | 7556473 |
| 27 | 15301319 |
| 28 | 31349605 |
| 29 | 63734241 |
| 30 | 130807801 |
| 31 | 266853663 |
| 32 | 548599872 |
| 33 | 1122544408 |
| 34 | 2311386319 |
| 35 | 4742103354 |
| 36 | 9778950947 |