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 | 4 |
| 2 | 11 |
| 3 | 30 |
| 4 | 66 |
| 5 | 115 |
| 6 | 200 |
| 7 | 302 |
| 8 | 441 |
| 9 | 619 |
| 10 | 829 |
| 11 | 1085 |
| 12 | 1395 |
| 13 | 1771 |
| 14 | 2200 |
| 15 | 2666 |
| 16 | 3228 |
| 17 | 3843 |
| 18 | 4564 |
| 19 | 5351 |
| 20 | 6185 |
| 21 | 7143 |
| 22 | 8158 |
| 23 | 9349 |
| 24 | 10526 |
| 25 | 11934 |
| 26 | 13375 |
| 27 | 14896 |
| 28 | 16652 |
| 29 | 18381 |
| 30 | 20370 |
| 31 | 22411 |
| 32 | 24629 |
| 33 | 26963 |
| 34 | 29406 |
| 35 | 32101 |
| 36 | 34840 |
| 37 | 37766 |
| 38 | 40920 |
| 39 | 44164 |
| 40 | 47587 |
| 41 | 51200 |