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 | 289 |
| 2 | 910 |
| 3 | 2430 |
| 4 | 5744 |
| 5 | 12346 |
| 6 | 24591 |
| 7 | 46029 |
| 8 | 81805 |
| 9 | 139143 |
| 10 | 227930 |
| 11 | 361384 |
| 12 | 556834 |
| 13 | 836618 |
| 14 | 1229093 |
| 15 | 1769773 |
| 16 | 2502617 |
| 17 | 3481445 |
| 18 | 4771508 |
| 19 | 6451232 |
| 20 | 8614108 |
| 21 | 11370764 |
| 22 | 14851235 |
| 23 | 19207395 |
| 24 | 24615603 |
| 25 | 31279561 |
| 26 | 39433366 |
| 27 | 49344790 |
| 28 | 61318804 |
| 29 | 75701312 |