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 | 1 |
| 3 | 10 |
| 4 | 36 |
| 5 | 45 |
| 6 | 136 |
| 7 | 153 |
| 8 | 325 |
| 9 | 666 |
| 10 | 820 |
| 11 | 1225 |
| 12 | 1378 |
| 13 | 2080 |
| 14 | 2628 |
| 15 | 2701 |
| 16 | 3240 |
| 17 | 3321 |
| 18 | 4005 |
| 19 | 4753 |
| 20 | 5050 |
| 21 | 6786 |
| 22 | 7381 |
| 23 | 9316 |
| 24 | 10440 |
| 25 | 10585 |
| 26 | 11026 |
| 27 | 14365 |
| 28 | 16290 |
| 29 | 18721 |
| 30 | 19306 |
| 31 | 25425 |
| 32 | 27028 |
| 33 | 27261 |
| 34 | 29161 |
| 35 | 29890 |
| 36 | 32896 |
| 37 | 33930 |
| 38 | 41616 |
| 39 | 41905 |
| 40 | 42778 |