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 | 7 |
| 2 | 27 |
| 3 | 77 |
| 4 | 181 |
| 5 | 371 |
| 6 | 686 |
| 7 | 1169 |
| 8 | 1862 |
| 9 | 2800 |
| 10 | 4005 |
| 11 | 5481 |
| 12 | 7210 |
| 13 | 9149 |
| 14 | 11230 |
| 15 | 13363 |
| 16 | 15442 |
| 17 | 17353 |
| 18 | 18983 |
| 19 | 20230 |
| 20 | 21013 |
| 21 | 21280 |
| 22 | 21013 |
| 23 | 20230 |
| 24 | 18983 |
| 25 | 17353 |
| 26 | 15442 |
| 27 | 13363 |
| 28 | 11230 |
| 29 | 9149 |
| 30 | 7210 |
| 31 | 5481 |
| 32 | 4005 |
| 33 | 2800 |
| 34 | 1862 |
| 35 | 1169 |
| 36 | 686 |
| 37 | 371 |
| 38 | 181 |
| 39 | 77 |
| 40 | 27 |
| 41 | 7 |
| 42 | 1 |