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 | 3 |
| 2 | 127 |
| 3 | 251 |
| 4 | 313 |
| 5 | 499 |
| 6 | 809 |
| 7 | 1181 |
| 8 | 1367 |
| 9 | 1429 |
| 10 | 1553 |
| 11 | 1801 |
| 12 | 1987 |
| 13 | 2111 |
| 14 | 2297 |
| 15 | 2731 |
| 16 | 2917 |
| 17 | 3041 |
| 18 | 3413 |
| 19 | 3847 |
| 20 | 4157 |
| 21 | 4219 |
| 22 | 4591 |
| 23 | 5087 |
| 24 | 5273 |
| 25 | 5521 |
| 26 | 6079 |
| 27 | 6203 |
| 28 | 6389 |
| 29 | 6451 |
| 30 | 6637 |
| 31 | 6761 |
| 32 | 6823 |
| 33 | 6947 |
| 34 | 7691 |
| 35 | 7753 |
| 36 | 7877 |
| 37 | 8311 |
| 38 | 8807 |
| 39 | 9241 |
| 40 | 9551 |
| 41 | 9613 |
| 42 | 9923 |
| 43 | 10357 |
| 44 | 10667 |