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 | 1 |
| 2 | 3 |
| 3 | 3 |
| 4 | 9 |
| 5 | 14 |
| 6 | 38 |
| 7 | 74 |
| 8 | 184 |
| 9 | 406 |
| 10 | 981 |
| 11 | 2262 |
| 12 | 5398 |
| 13 | 12589 |
| 14 | 29700 |
| 15 | 69289 |
| 16 | 161727 |
| 17 | 373879 |
| 18 | 858884 |
| 19 | 1948493 |
| 20 | 4358729 |
| 21 | 9560977 |
| 22 | 20489431 |
| 23 | 42663444 |
| 24 | 85863997 |
| 25 | 165915428 |
| 26 | 305531365 |
| 27 | 531313203 |
| 28 | 863339197 |
| 29 | 1294513104 |
| 30 | 1765472012 |
| 31 | 2153407639 |
| 32 | 2304457468 |
| 33 | 2119172241 |
| 34 | 1641722694 |