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 | 1 |
| 2 | 6 |
| 3 | 21 |
| 4 | 36 |
| 5 | 91 |
| 6 | 126 |
| 7 | 266 |
| 8 | 336 |
| 9 | 441 |
| 10 | 546 |
| 11 | 994 |
| 12 | 1120 |
| 13 | 1890 |
| 14 | 2184 |
| 15 | 2562 |
| 16 | 2856 |
| 17 | 4482 |
| 18 | 4932 |
| 19 | 7392 |
| 20 | 8052 |
| 21 | 9042 |
| 22 | 10032 |
| 23 | 14377 |
| 24 | 15092 |
| 25 | 17237 |
| 26 | 18887 |
| 27 | 20812 |
| 28 | 22297 |
| 29 | 30635 |
| 30 | 31856 |
| 31 | 42783 |
| 32 | 45240 |
| 33 | 49023 |
| 34 | 52806 |
| 35 | 57707 |
| 36 | 59436 |
| 37 | 77623 |
| 38 | 83083 |
| 39 | 89180 |
| 40 | 92365 |
| 41 | 118188 |
| 42 | 122248 |
| 43 | 154188 |