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 | 5 |
| 2 | 15 |
| 3 | 37 |
| 4 | 77 |
| 5 | 141 |
| 6 | 235 |
| 7 | 365 |
| 8 | 537 |
| 9 | 757 |
| 10 | 1031 |
| 11 | 1365 |
| 12 | 1765 |
| 13 | 2237 |
| 14 | 2787 |
| 15 | 3421 |
| 16 | 4145 |
| 17 | 4965 |
| 18 | 5887 |
| 19 | 6917 |
| 20 | 8061 |
| 21 | 9325 |
| 22 | 10715 |
| 23 | 12237 |
| 24 | 13897 |
| 25 | 15701 |
| 26 | 17655 |
| 27 | 19765 |
| 28 | 22037 |
| 29 | 24477 |
| 30 | 27091 |
| 31 | 29885 |
| 32 | 32865 |
| 33 | 36037 |
| 34 | 39407 |
| 35 | 42981 |
| 36 | 46765 |
| 37 | 50765 |
| 38 | 54987 |
| 39 | 59437 |
| 40 | 64121 |
| 41 | 69045 |