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 | 2 |
| 2 | 4 |
| 3 | 8 |
| 4 | 13 |
| 5 | 21 |
| 6 | 31 |
| 7 | 45 |
| 8 | 66 |
| 9 | 81 |
| 10 | 97 |
| 11 | 123 |
| 12 | 148 |
| 13 | 182 |
| 14 | 204 |
| 15 | 252 |
| 16 | 291 |
| 17 | 324 |
| 18 | 352 |
| 19 | 415 |
| 20 | 486 |
| 21 | 540 |
| 22 | 651 |
| 23 | 706 |
| 24 | 781 |
| 25 | 864 |
| 26 | 963 |
| 27 | 1003 |
| 28 | 1148 |
| 29 | 1217 |
| 30 | 1371 |
| 31 | 1409 |
| 32 | 1523 |
| 33 | 1673 |
| 34 | 1974 |
| 35 | 2105 |
| 36 | 2191 |
| 37 | 2317 |
| 38 | 2496 |
| 39 | 2652 |
| 40 | 2726 |
| 41 | 2858 |
| 42 | 3219 |
| 43 | 3268 |
| 44 | 3500 |
| 45 | 3605 |
| 46 | 3864 |
| 47 | 3962 |
| 48 | 4237 |