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) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 3 |
| 8 | 1 |
| 9 | 10 |
| 10 | 15 |
| 11 | 52 |
| 12 | 52 |
| 13 | 154 |
| 14 | 199 |
| 15 | 649 |
| 16 | 850 |
| 17 | 2483 |
| 18 | 3435 |
| 19 | 9640 |
| 20 | 13102 |
| 21 | 34812 |
| 22 | 51386 |
| 23 | 136739 |
| 24 | 199933 |
| 25 | 510833 |
| 26 | 777795 |
| 27 | 1982321 |
| 28 | 3017298 |
| 29 | 7508064 |
| 30 | 11663138 |
| 31 | 28833595 |
| 32 | 45124684 |
| 33 | 110272081 |