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 | 9 |
| 2 | 15 |
| 3 | 21 |
| 4 | 27 |
| 5 | 39 |
| 6 | 63 |
| 7 | 135 |
| 8 | 171 |
| 9 | 189 |
| 10 | 195 |
| 11 | 231 |
| 12 | 315 |
| 13 | 351 |
| 14 | 513 |
| 15 | 651 |
| 16 | 663 |
| 17 | 819 |
| 18 | 855 |
| 19 | 999 |
| 20 | 1197 |
| 21 | 1755 |
| 22 | 1881 |
| 23 | 2223 |
| 24 | 2295 |
| 25 | 2331 |
| 26 | 3111 |
| 27 | 3591 |
| 28 | 4095 |
| 29 | 4347 |
| 30 | 4599 |
| 31 | 4995 |
| 32 | 5031 |
| 33 | 5301 |
| 34 | 6327 |
| 35 | 7161 |
| 36 | 9471 |
| 37 | 9855 |
| 38 | 10431 |
| 39 | 10791 |
| 40 | 11115 |
| 41 | 11655 |
| 42 | 12663 |
| 43 | 12987 |
| 44 | 13455 |
| 45 | 14091 |
| 46 | 14391 |