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) |
|---|---|
| 0 | 1 |
| 1 | 11 |
| 2 | 65 |
| 3 | 275 |
| 4 | 934 |
| 5 | 2706 |
| 6 | 6941 |
| 7 | 16159 |
| 8 | 34749 |
| 9 | 69927 |
| 10 | 132991 |
| 11 | 240900 |
| 12 | 418187 |
| 13 | 699193 |
| 14 | 1130581 |
| 15 | 1774058 |
| 16 | 2709201 |
| 17 | 4036252 |
| 18 | 5878719 |
| 19 | 8385597 |
| 20 | 11733007 |
| 21 | 16125043 |
| 22 | 21793619 |
| 23 | 28997122 |
| 24 | 38017704 |
| 25 | 49157086 |
| 26 | 62730799 |
| 27 | 79060850 |
| 28 | 98466873 |
| 29 | 121255904 |
| 30 | 147711001 |
| 31 | 178079011 |