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 | 2 |
| 3 | 4 |
| 4 | 7 |
| 5 | 12 |
| 6 | 18 |
| 7 | 29 |
| 8 | 42 |
| 9 | 61 |
| 10 | 87 |
| 11 | 122 |
| 12 | 167 |
| 13 | 229 |
| 14 | 306 |
| 15 | 409 |
| 16 | 538 |
| 17 | 705 |
| 18 | 915 |
| 19 | 1182 |
| 20 | 1509 |
| 21 | 1927 |
| 22 | 2438 |
| 23 | 3075 |
| 24 | 3854 |
| 25 | 4814 |
| 26 | 5985 |
| 27 | 7416 |
| 28 | 9144 |
| 29 | 11253 |
| 30 | 13784 |
| 31 | 16845 |
| 32 | 20512 |
| 33 | 24922 |
| 34 | 30179 |
| 35 | 36470 |
| 36 | 43939 |
| 37 | 52841 |
| 38 | 63378 |
| 39 | 75864 |
| 40 | 90605 |
| 41 | 108022 |
| 42 | 128496 |
| 43 | 152603 |
| 44 | 180865 |
| 45 | 214044 |
| 46 | 252826 |
| 47 | 298192 |
| 48 | 351108 |
| 49 | 412832 |
| 50 | 484632 |
| 51 | 568157 |