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 | 5 |
| 1 | 45 |
| 2 | 117 |
| 3 | 221 |
| 4 | 357 |
| 5 | 525 |
| 6 | 725 |
| 7 | 957 |
| 8 | 1221 |
| 9 | 1517 |
| 10 | 1845 |
| 11 | 2205 |
| 12 | 2597 |
| 13 | 3021 |
| 14 | 3477 |
| 15 | 3965 |
| 16 | 4485 |
| 17 | 5037 |
| 18 | 5621 |
| 19 | 6237 |
| 20 | 6885 |
| 21 | 7565 |
| 22 | 8277 |
| 23 | 9021 |
| 24 | 9797 |
| 25 | 10605 |
| 26 | 11445 |
| 27 | 12317 |
| 28 | 13221 |
| 29 | 14157 |
| 30 | 15125 |
| 31 | 16125 |
| 32 | 17157 |
| 33 | 18221 |