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 | 1 |
| 2 | 75 |
| 3 | 222 |
| 4 | 442 |
| 5 | 735 |
| 6 | 1101 |
| 7 | 1540 |
| 8 | 2052 |
| 9 | 2637 |
| 10 | 3295 |
| 11 | 4026 |
| 12 | 4830 |
| 13 | 5707 |
| 14 | 6657 |
| 15 | 7680 |
| 16 | 8776 |
| 17 | 9945 |
| 18 | 11187 |
| 19 | 12502 |
| 20 | 13890 |
| 21 | 15351 |
| 22 | 16885 |
| 23 | 18492 |
| 24 | 20172 |
| 25 | 21925 |
| 26 | 23751 |
| 27 | 25650 |
| 28 | 27622 |
| 29 | 29667 |
| 30 | 31785 |
| 31 | 33976 |
| 32 | 36240 |
| 33 | 38577 |
| 34 | 40987 |
| 35 | 43470 |
| 36 | 46026 |
| 37 | 48655 |
| 38 | 51357 |
| 39 | 54132 |
| 40 | 56980 |
| 41 | 59901 |
| 42 | 62895 |
| 43 | 65962 |
| 44 | 69102 |
| 45 | 72315 |
| 46 | 75601 |
| 47 | 78960 |
| 48 | 82392 |
| 49 | 85897 |
| 50 | 89475 |