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) |
|---|---|
| 2 | 1 |
| 3 | 22 |
| 4 | 130 |
| 5 | 485 |
| 6 | 1400 |
| 7 | 3416 |
| 8 | 7392 |
| 9 | 14610 |
| 10 | 26895 |
| 11 | 46750 |
| 12 | 77506 |
| 13 | 123487 |
| 14 | 190190 |
| 15 | 284480 |
| 16 | 414800 |
| 17 | 591396 |
| 18 | 826557 |
| 19 | 1134870 |
| 20 | 1533490 |
| 21 | 2042425 |
| 22 | 2684836 |
| 23 | 3487352 |
| 24 | 4480400 |
| 25 | 5698550 |
| 26 | 7180875 |
| 27 | 8971326 |
| 28 | 11119122 |
| 29 | 13679155 |
| 30 | 16712410 |
| 31 | 20286400 |
| 32 | 24475616 |
| 33 | 29361992 |
| 34 | 35035385 |
| 35 | 41594070 |
| 36 | 49145250 |