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 | 645 |
| 2 | 1045 |
| 3 | 1281 |
| 4 | 2465 |
| 5 | 2821 |
| 6 | 3201 |
| 7 | 3605 |
| 8 | 7701 |
| 9 | 8965 |
| 10 | 12545 |
| 11 | 15841 |
| 12 | 17633 |
| 13 | 18565 |
| 14 | 20501 |
| 15 | 23585 |
| 16 | 24661 |
| 17 | 25761 |
| 18 | 26885 |
| 19 | 30401 |
| 20 | 34133 |
| 21 | 36741 |
| 22 | 45141 |
| 23 | 51221 |
| 24 | 52801 |
| 25 | 57685 |
| 26 | 59361 |
| 27 | 62785 |
| 28 | 66305 |
| 29 | 68101 |
| 30 | 71765 |
| 31 | 73633 |
| 32 | 89441 |
| 33 | 95765 |
| 34 | 100101 |
| 35 | 116033 |
| 36 | 120801 |
| 37 | 123221 |
| 38 | 125665 |
| 39 | 138245 |