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 | 3 |
| 3 | 7 |
| 4 | 13 |
| 5 | 25 |
| 6 | 41 |
| 7 | 65 |
| 8 | 93 |
| 9 | 133 |
| 10 | 177 |
| 11 | 245 |
| 12 | 305 |
| 13 | 397 |
| 14 | 489 |
| 15 | 609 |
| 16 | 725 |
| 17 | 893 |
| 18 | 1029 |
| 19 | 1241 |
| 20 | 1425 |
| 21 | 1665 |
| 22 | 1889 |
| 23 | 2209 |
| 24 | 2457 |
| 25 | 2821 |
| 26 | 3145 |
| 27 | 3549 |
| 28 | 3913 |
| 29 | 4429 |
| 30 | 4805 |
| 31 | 5397 |
| 32 | 5885 |
| 33 | 6493 |
| 34 | 7045 |
| 35 | 7781 |
| 36 | 8341 |
| 37 | 9185 |
| 38 | 9881 |
| 39 | 10745 |
| 40 | 11489 |
| 41 | 12545 |
| 42 | 13297 |
| 43 | 14453 |
| 44 | 15385 |
| 45 | 16497 |
| 46 | 17517 |
| 47 | 18917 |