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 | 5 |
| 4 | 7 |
| 5 | 12 |
| 6 | 31 |
| 7 | 43 |
| 8 | 74 |
| 9 | 191 |
| 10 | 265 |
| 11 | 456 |
| 12 | 1177 |
| 13 | 1633 |
| 14 | 2810 |
| 15 | 7253 |
| 16 | 10063 |
| 17 | 17316 |
| 18 | 44695 |
| 19 | 62011 |
| 20 | 106706 |
| 21 | 275423 |
| 22 | 382129 |
| 23 | 657552 |
| 24 | 1697233 |
| 25 | 2354785 |
| 26 | 4052018 |
| 27 | 10458821 |
| 28 | 14510839 |
| 29 | 24969660 |
| 30 | 64450159 |
| 31 | 89419819 |
| 32 | 153869978 |
| 33 | 397159775 |
| 34 | 551029753 |
| 35 | 948189528 |
| 36 | 2447408809 |
| 37 | 3395598337 |
| 38 | 5843007146 |