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 | 9 |
| 3 | 41 |
| 4 | 59 |
| 5 | 123 |
| 6 | 153 |
| 7 | 249 |
| 8 | 291 |
| 9 | 419 |
| 10 | 473 |
| 11 | 633 |
| 12 | 699 |
| 13 | 891 |
| 14 | 969 |
| 15 | 1193 |
| 16 | 1283 |
| 17 | 1539 |
| 18 | 1641 |
| 19 | 1929 |
| 20 | 2043 |
| 21 | 2363 |
| 22 | 2489 |
| 23 | 2841 |
| 24 | 2979 |
| 25 | 3363 |
| 26 | 3513 |
| 27 | 3929 |
| 28 | 4091 |
| 29 | 4539 |
| 30 | 4713 |
| 31 | 5193 |
| 32 | 5379 |
| 33 | 5891 |
| 34 | 6089 |
| 35 | 6633 |
| 36 | 6843 |
| 37 | 7419 |
| 38 | 7641 |
| 39 | 8249 |
| 40 | 8483 |
| 41 | 9123 |
| 42 | 9369 |
| 43 | 10041 |
| 44 | 10299 |
| 45 | 11003 |
| 46 | 11273 |