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 | 13 |
| 2 | 42 |
| 3 | 87 |
| 4 | 148 |
| 5 | 225 |
| 6 | 318 |
| 7 | 427 |
| 8 | 552 |
| 9 | 693 |
| 10 | 850 |
| 11 | 1023 |
| 12 | 1212 |
| 13 | 1417 |
| 14 | 1638 |
| 15 | 1875 |
| 16 | 2128 |
| 17 | 2397 |
| 18 | 2682 |
| 19 | 2983 |
| 20 | 3300 |
| 21 | 3633 |
| 22 | 3982 |
| 23 | 4347 |
| 24 | 4728 |
| 25 | 5125 |
| 26 | 5538 |
| 27 | 5967 |
| 28 | 6412 |
| 29 | 6873 |
| 30 | 7350 |
| 31 | 7843 |
| 32 | 8352 |
| 33 | 8877 |
| 34 | 9418 |
| 35 | 9975 |
| 36 | 10548 |
| 37 | 11137 |
| 38 | 11742 |
| 39 | 12363 |
| 40 | 13000 |