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 | 2 |
| 5 | 3 |
| 6 | 3 |
| 7 | 3 |
| 8 | 3 |
| 9 | 3 |
| 10 | 3 |
| 11 | 3 |
| 12 | 3 |
| 13 | 3 |
| 14 | 3 |
| 15 | 3 |
| 16 | 3 |
| 17 | 5 |
| 18 | 7 |
| 19 | 8 |
| 20 | 13 |
| 21 | 15 |
| 22 | 23 |
| 23 | 29 |
| 24 | 41 |
| 25 | 52 |
| 26 | 65 |
| 27 | 84 |
| 28 | 114 |
| 29 | 149 |
| 30 | 194 |
| 31 | 257 |
| 32 | 336 |
| 33 | 431 |
| 34 | 547 |
| 35 | 686 |
| 36 | 880 |
| 37 | 1151 |
| 38 | 1478 |
| 39 | 1961 |
| 40 | 2499 |
| 41 | 3258 |
| 42 | 4264 |
| 43 | 5550 |
| 44 | 7231 |
| 45 | 9416 |
| 46 | 12286 |
| 47 | 16031 |
| 48 | 20887 |
| 49 | 27181 |
| 50 | 35466 |
| 51 | 46009 |
| 52 | 60053 |
| 53 | 78107 |
| 54 | 102086 |
| 55 | 133309 |
| 56 | 174369 |
| 57 | 227810 |