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 | 1 |
| 2 | 7 |
| 3 | 28 |
| 4 | 81 |
| 5 | 191 |
| 6 | 391 |
| 7 | 722 |
| 8 | 1233 |
| 9 | 1981 |
| 10 | 3031 |
| 11 | 4456 |
| 12 | 6337 |
| 13 | 8763 |
| 14 | 11831 |
| 15 | 15646 |
| 16 | 20321 |
| 17 | 25977 |
| 18 | 32743 |
| 19 | 40756 |
| 20 | 50161 |
| 21 | 61111 |
| 22 | 73767 |
| 23 | 88298 |
| 24 | 104881 |
| 25 | 123701 |
| 26 | 144951 |
| 27 | 168832 |
| 28 | 195553 |
| 29 | 225331 |
| 30 | 258391 |
| 31 | 294966 |
| 32 | 335297 |
| 33 | 379633 |
| 34 | 428231 |
| 35 | 481356 |
| 36 | 539281 |
| 37 | 602287 |
| 38 | 670663 |
| 39 | 744706 |
| 40 | 824721 |