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 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 7 |
| 5 | 13 |
| 6 | 23 |
| 7 | 40 |
| 8 | 68 |
| 9 | 124 |
| 10 | 208 |
| 11 | 368 |
| 12 | 559 |
| 13 | 918 |
| 14 | 1352 |
| 15 | 2017 |
| 16 | 2891 |
| 17 | 4122 |
| 18 | 5506 |
| 19 | 7458 |
| 20 | 9623 |
| 21 | 12620 |
| 22 | 16125 |
| 23 | 20626 |
| 24 | 25401 |
| 25 | 31513 |
| 26 | 38587 |
| 27 | 47244 |
| 28 | 56592 |
| 29 | 68021 |
| 30 | 80503 |
| 31 | 95859 |
| 32 | 112137 |
| 33 | 131986 |
| 34 | 153353 |
| 35 | 178434 |
| 36 | 205627 |
| 37 | 236266 |
| 38 | 269884 |
| 39 | 307167 |
| 40 | 346844 |
| 41 | 394924 |
| 42 | 445797 |
| 43 | 501739 |