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 | 40 |
| 4 | 105 |
| 5 | 252 |
| 6 | 574 |
| 7 | 1237 |
| 8 | 2568 |
| 9 | 5138 |
| 10 | 9988 |
| 11 | 18893 |
| 12 | 34937 |
| 13 | 63238 |
| 14 | 112370 |
| 15 | 196244 |
| 16 | 337477 |
| 17 | 572024 |
| 18 | 956956 |
| 19 | 1581321 |
| 20 | 2583637 |
| 21 | 4176495 |
| 22 | 6684820 |
| 23 | 10599939 |
| 24 | 16661401 |
| 25 | 25972485 |
| 26 | 40171474 |
| 27 | 61672695 |
| 28 | 94017765 |
| 29 | 142368024 |
| 30 | 214211760 |
| 31 | 320350725 |
| 32 | 476299978 |