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 | 6 |
| 2 | 27 |
| 3 | 87 |
| 4 | 228 |
| 5 | 513 |
| 6 | 1034 |
| 7 | 1914 |
| 8 | 3315 |
| 9 | 5440 |
| 10 | 8541 |
| 11 | 12921 |
| 12 | 18942 |
| 13 | 27027 |
| 14 | 37668 |
| 15 | 51428 |
| 16 | 68949 |
| 17 | 90954 |
| 18 | 118255 |
| 19 | 151755 |
| 20 | 192456 |
| 21 | 241461 |
| 22 | 299982 |
| 23 | 369342 |
| 24 | 450983 |
| 25 | 546468 |
| 26 | 657489 |
| 27 | 785869 |
| 28 | 933570 |
| 29 | 1102695 |
| 30 | 1295496 |