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 | 4 |
| 3 | 9 |
| 4 | 19 |
| 5 | 33 |
| 6 | 59 |
| 7 | 93 |
| 8 | 150 |
| 9 | 226 |
| 10 | 342 |
| 11 | 494 |
| 12 | 721 |
| 13 | 1011 |
| 14 | 1425 |
| 15 | 1960 |
| 16 | 2695 |
| 17 | 3633 |
| 18 | 4903 |
| 19 | 6506 |
| 20 | 8633 |
| 21 | 11312 |
| 22 | 14796 |
| 23 | 19157 |
| 24 | 24773 |
| 25 | 31744 |
| 26 | 40608 |
| 27 | 51578 |
| 28 | 65372 |
| 29 | 82341 |
| 30 | 103522 |
| 31 | 129428 |
| 32 | 161505 |
| 33 | 200589 |
| 34 | 248614 |
| 35 | 306869 |
| 36 | 378051 |
| 37 | 463987 |
| 38 | 568387 |
| 39 | 693989 |
| 40 | 845754 |
| 41 | 1027625 |