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 | 0 |
| 1 | 2 |
| 2 | 3 |
| 3 | 7 |
| 4 | 13 |
| 5 | 29 |
| 6 | 53 |
| 7 | 97 |
| 8 | 181 |
| 9 | 337 |
| 10 | 617 |
| 11 | 1151 |
| 12 | 2111 |
| 13 | 3881 |
| 14 | 7151 |
| 15 | 13147 |
| 16 | 24181 |
| 17 | 44483 |
| 18 | 81817 |
| 19 | 150497 |
| 20 | 276817 |
| 21 | 509137 |
| 22 | 936469 |
| 23 | 1722431 |
| 24 | 3168097 |
| 25 | 5827001 |
| 26 | 10717561 |
| 27 | 19712669 |
| 28 | 36257237 |
| 29 | 66687469 |
| 30 | 122657377 |
| 31 | 225602099 |
| 32 | 414946951 |
| 33 | 763206467 |
| 34 | 1403755531 |
| 35 | 2581909003 |