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 | 12 |
| 3 | 29 |
| 4 | 61 |
| 5 | 120 |
| 6 | 222 |
| 7 | 392 |
| 8 | 669 |
| 9 | 1109 |
| 10 | 1792 |
| 11 | 2838 |
| 12 | 4413 |
| 13 | 6751 |
| 14 | 10184 |
| 15 | 15169 |
| 16 | 22332 |
| 17 | 32538 |
| 18 | 46955 |
| 19 | 67162 |
| 20 | 95288 |
| 21 | 134173 |
| 22 | 187593 |
| 23 | 260562 |
| 24 | 359682 |
| 25 | 493622 |
| 26 | 673736 |
| 27 | 914814 |
| 28 | 1236057 |
| 29 | 1662340 |
| 30 | 2225738 |
| 31 | 2967500 |
| 32 | 3940540 |
| 33 | 5212495 |
| 34 | 6869598 |