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 | 15 |
| 2 | 201 |
| 3 | 411 |
| 4 | 477 |
| 5 | 561 |
| 6 | 1065 |
| 7 | 1335 |
| 8 | 1515 |
| 9 | 1527 |
| 10 | 1617 |
| 11 | 2001 |
| 12 | 2331 |
| 13 | 2355 |
| 14 | 2511 |
| 15 | 2517 |
| 16 | 2637 |
| 17 | 2727 |
| 18 | 2817 |
| 19 | 3117 |
| 20 | 3927 |
| 21 | 4131 |
| 22 | 4611 |
| 23 | 4755 |
| 24 | 4797 |
| 25 | 5121 |
| 26 | 5427 |
| 27 | 5457 |
| 28 | 5787 |
| 29 | 6045 |
| 30 | 6501 |
| 31 | 6675 |
| 32 | 7347 |
| 33 | 7395 |
| 34 | 8637 |
| 35 | 9591 |
| 36 | 9711 |
| 37 | 10071 |
| 38 | 10305 |
| 39 | 10371 |
| 40 | 10377 |
| 41 | 10965 |
| 42 | 11031 |