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 | 2 |
| 2 | 8 |
| 3 | 21 |
| 4 | 60 |
| 5 | 133 |
| 6 | 330 |
| 7 | 675 |
| 8 | 1474 |
| 9 | 2910 |
| 10 | 5838 |
| 11 | 10920 |
| 12 | 20944 |
| 13 | 37673 |
| 14 | 68580 |
| 15 | 120384 |
| 16 | 211365 |
| 17 | 359964 |
| 18 | 614845 |
| 19 | 1022630 |
| 20 | 1701678 |
| 21 | 2776752 |
| 22 | 4517016 |
| 23 | 7232565 |
| 24 | 11557350 |
| 25 | 18201568 |
| 26 | 28579152 |
| 27 | 44373420 |
| 28 | 68634280 |
| 29 | 105109125 |
| 30 | 160436916 |
| 31 | 242692582 |
| 32 | 365853180 |
| 33 | 547346709 |