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 | 9 |
| 2 | 41 |
| 3 | 109 |
| 4 | 205 |
| 5 | 325 |
| 6 | 473 |
| 7 | 649 |
| 8 | 853 |
| 9 | 1085 |
| 10 | 1345 |
| 11 | 1633 |
| 12 | 1949 |
| 13 | 2293 |
| 14 | 2665 |
| 15 | 3065 |
| 16 | 3493 |
| 17 | 3949 |
| 18 | 4433 |
| 19 | 4945 |
| 20 | 5485 |
| 21 | 6053 |
| 22 | 6649 |
| 23 | 7273 |
| 24 | 7925 |
| 25 | 8605 |
| 26 | 9313 |
| 27 | 10049 |
| 28 | 10813 |
| 29 | 11605 |
| 30 | 12425 |
| 31 | 13273 |
| 32 | 14149 |
| 33 | 15053 |
| 34 | 15985 |
| 35 | 16945 |
| 36 | 17933 |
| 37 | 18949 |
| 38 | 19993 |
| 39 | 21065 |
| 40 | 22165 |