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) |
|---|---|
| 1 | 0 |
| 2 | 3 |
| 3 | 10 |
| 4 | 21 |
| 5 | 55 |
| 6 | 91 |
| 7 | 187 |
| 8 | 247 |
| 9 | 391 |
| 10 | 551 |
| 11 | 713 |
| 12 | 1073 |
| 13 | 1271 |
| 14 | 1591 |
| 15 | 1927 |
| 16 | 2279 |
| 17 | 2773 |
| 18 | 3233 |
| 19 | 3953 |
| 20 | 4331 |
| 21 | 4891 |
| 22 | 5609 |
| 23 | 6059 |
| 24 | 7031 |
| 25 | 8051 |
| 26 | 8989 |
| 27 | 9991 |
| 28 | 10807 |
| 29 | 11227 |
| 30 | 12091 |
| 31 | 13843 |
| 32 | 14803 |
| 33 | 17399 |
| 34 | 18209 |
| 35 | 20413 |
| 36 | 20989 |
| 37 | 23393 |
| 38 | 24613 |
| 39 | 26219 |
| 40 | 28199 |
| 41 | 29893 |
| 42 | 31313 |