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 | 20 |
| 2 | 63 |
| 3 | 130 |
| 4 | 221 |
| 5 | 336 |
| 6 | 475 |
| 7 | 638 |
| 8 | 825 |
| 9 | 1036 |
| 10 | 1271 |
| 11 | 1530 |
| 12 | 1813 |
| 13 | 2120 |
| 14 | 2451 |
| 15 | 2806 |
| 16 | 3185 |
| 17 | 3588 |
| 18 | 4015 |
| 19 | 4466 |
| 20 | 4941 |
| 21 | 5440 |
| 22 | 5963 |
| 23 | 6510 |
| 24 | 7081 |
| 25 | 7676 |
| 26 | 8295 |
| 27 | 8938 |
| 28 | 9605 |
| 29 | 10296 |
| 30 | 11011 |
| 31 | 11750 |
| 32 | 12513 |
| 33 | 13300 |
| 34 | 14111 |
| 35 | 14946 |
| 36 | 15805 |
| 37 | 16688 |
| 38 | 17595 |
| 39 | 18526 |
| 40 | 19481 |
| 41 | 20460 |
| 42 | 21463 |