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 | 4 |
| 2 | 7 |
| 3 | 15 |
| 4 | 26 |
| 5 | 54 |
| 6 | 73 |
| 7 | 115 |
| 8 | 143 |
| 9 | 200 |
| 10 | 297 |
| 11 | 340 |
| 12 | 461 |
| 13 | 559 |
| 14 | 619 |
| 15 | 731 |
| 16 | 904 |
| 17 | 1098 |
| 18 | 1178 |
| 19 | 1393 |
| 20 | 1556 |
| 21 | 1652 |
| 22 | 1912 |
| 23 | 2103 |
| 24 | 2391 |
| 25 | 2785 |
| 26 | 3008 |
| 27 | 3150 |
| 28 | 3392 |
| 29 | 3535 |
| 30 | 3789 |
| 31 | 4647 |
| 32 | 4941 |
| 33 | 5363 |
| 34 | 5555 |
| 35 | 6299 |
| 36 | 6495 |
| 37 | 6963 |
| 38 | 7481 |
| 39 | 7864 |
| 40 | 8403 |
| 41 | 8968 |
| 42 | 9196 |
| 43 | 10115 |
| 44 | 10364 |
| 45 | 10805 |
| 46 | 11068 |
| 47 | 12271 |