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 | 3 |
| 2 | 7 |
| 3 | 13 |
| 4 | 23 |
| 5 | 41 |
| 6 | 98 |
| 7 | 223 |
| 8 | 437 |
| 9 | 699 |
| 10 | 1213 |
| 11 | 2624 |
| 12 | 4674 |
| 13 | 11163 |
| 14 | 21300 |
| 15 | 40858 |
| 16 | 73977 |
| 17 | 148591 |
| 18 | 297394 |
| 19 | 567076 |
| 20 | 1100738 |
| 21 | 2243474 |
| 22 | 4340628 |
| 23 | 8726122 |
| 24 | 17397270 |
| 25 | 34701556 |
| 26 | 68372147 |
| 27 | 136254352 |
| 28 | 271069771 |
| 29 | 546613630 |
| 30 | 1088921640 |
| 31 | 2163138108 |
| 32 | 4334318825 |