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 | 6 |
| 4 | 12 |
| 5 | 24 |
| 6 | 39 |
| 7 | 63 |
| 8 | 91 |
| 9 | 123 |
| 10 | 168 |
| 11 | 218 |
| 12 | 273 |
| 13 | 345 |
| 14 | 423 |
| 15 | 507 |
| 16 | 597 |
| 17 | 709 |
| 18 | 828 |
| 19 | 954 |
| 20 | 1087 |
| 21 | 1247 |
| 22 | 1415 |
| 23 | 1591 |
| 24 | 1775 |
| 25 | 1991 |
| 26 | 2216 |
| 27 | 2450 |
| 28 | 2693 |
| 29 | 2945 |
| 30 | 3235 |
| 31 | 3535 |
| 32 | 3845 |
| 33 | 4165 |
| 34 | 4495 |
| 35 | 4869 |
| 36 | 5254 |
| 37 | 5650 |
| 38 | 6057 |
| 39 | 6475 |
| 40 | 6943 |
| 41 | 7423 |
| 42 | 7915 |
| 43 | 8419 |
| 44 | 8935 |
| 45 | 9463 |
| 46 | 10048 |
| 47 | 10646 |
| 48 | 11257 |
| 49 | 11881 |
| 50 | 12518 |