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 | 0 |
| 1 | 1 |
| 2 | 5 |
| 3 | 13 |
| 4 | 21 |
| 5 | 45 |
| 6 | 77 |
| 7 | 109 |
| 8 | 165 |
| 9 | 245 |
| 10 | 325 |
| 11 | 413 |
| 12 | 525 |
| 13 | 685 |
| 14 | 853 |
| 15 | 1093 |
| 16 | 1317 |
| 17 | 1661 |
| 18 | 1981 |
| 19 | 2301 |
| 20 | 2645 |
| 21 | 3093 |
| 22 | 3621 |
| 23 | 4157 |
| 24 | 4861 |
| 25 | 5565 |
| 26 | 6437 |
| 27 | 7173 |
| 28 | 8053 |
| 29 | 8893 |
| 30 | 9917 |
| 31 | 11005 |
| 32 | 12261 |
| 33 | 13589 |
| 34 | 14981 |
| 35 | 16397 |
| 36 | 17837 |
| 37 | 19341 |
| 38 | 20997 |