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 | 9 |
| 2 | 19 |
| 3 | 41 |
| 4 | 85 |
| 5 | 155 |
| 6 | 235 |
| 7 | 341 |
| 8 | 457 |
| 9 | 691 |
| 10 | 929 |
| 11 | 1179 |
| 12 | 1555 |
| 13 | 1805 |
| 14 | 2065 |
| 15 | 2539 |
| 16 | 3181 |
| 17 | 3659 |
| 18 | 4149 |
| 19 | 4825 |
| 20 | 5255 |
| 21 | 5841 |
| 22 | 6637 |
| 23 | 7471 |
| 24 | 8723 |
| 25 | 9895 |
| 26 | 10505 |
| 27 | 11125 |
| 28 | 11771 |
| 29 | 12427 |
| 30 | 14465 |
| 31 | 16765 |
| 32 | 18079 |
| 33 | 19181 |
| 34 | 20851 |
| 35 | 22649 |
| 36 | 23859 |
| 37 | 25749 |
| 38 | 27385 |
| 39 | 29059 |
| 40 | 31141 |
| 41 | 32579 |
| 42 | 34753 |
| 43 | 37055 |
| 44 | 38215 |
| 45 | 39401 |
| 46 | 42189 |
| 47 | 47265 |
| 48 | 50845 |
| 49 | 52211 |