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 | 0 |
| 2 | 4 |
| 3 | 20 |
| 4 | 28 |
| 5 | 39 |
| 6 | 47 |
| 7 | 81 |
| 8 | 135 |
| 9 | 152 |
| 10 | 207 |
| 11 | 216 |
| 12 | 270 |
| 13 | 496 |
| 14 | 546 |
| 15 | 615 |
| 16 | 732 |
| 17 | 832 |
| 18 | 1148 |
| 19 | 1208 |
| 20 | 1343 |
| 21 | 1391 |
| 22 | 1541 |
| 23 | 1750 |
| 24 | 2000 |
| 25 | 2260 |
| 26 | 2548 |
| 27 | 2575 |
| 28 | 2825 |
| 29 | 3679 |
| 30 | 3807 |
| 31 | 4220 |
| 32 | 4604 |
| 33 | 5076 |
| 34 | 5508 |
| 35 | 5835 |
| 36 | 5859 |
| 37 | 6291 |
| 38 | 7538 |
| 39 | 7656 |
| 40 | 8188 |
| 41 | 8423 |
| 42 | 8712 |
| 43 | 8964 |
| 44 | 12092 |
| 45 | 12205 |
| 46 | 12511 |
| 47 | 12926 |