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 | 4 |
| 2 | 14 |
| 3 | 37 |
| 4 | 93 |
| 5 | 210 |
| 6 | 454 |
| 7 | 925 |
| 8 | 1824 |
| 9 | 3463 |
| 10 | 6408 |
| 11 | 11538 |
| 12 | 20353 |
| 13 | 35161 |
| 14 | 59726 |
| 15 | 99775 |
| 16 | 164337 |
| 17 | 266978 |
| 18 | 428521 |
| 19 | 679861 |
| 20 | 1067415 |
| 21 | 1659205 |
| 22 | 2555617 |
| 23 | 3902055 |
| 24 | 5909867 |
| 25 | 8881849 |
| 26 | 13252334 |
| 27 | 19637281 |
| 28 | 28909989 |
| 29 | 42297267 |
| 30 | 61520450 |
| 31 | 88976461 |
| 32 | 127996994 |