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 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 20 |
| 5 | 66 |
| 6 | 148 |
| 7 | 173 |
| 8 | 324 |
| 9 | 471 |
| 10 | 539 |
| 11 | 548 |
| 12 | 621 |
| 13 | 670 |
| 14 | 1486 |
| 15 | 2109 |
| 16 | 2693 |
| 17 | 3735 |
| 18 | 7574 |
| 19 | 7619 |
| 20 | 7886 |
| 21 | 13191 |
| 22 | 15116 |
| 23 | 24862 |
| 24 | 27717 |
| 25 | 29981 |
| 26 | 31679 |
| 27 | 45110 |
| 28 | 59597 |
| 29 | 60876 |
| 30 | 65607 |
| 31 | 78847 |
| 32 | 82959 |
| 33 | 96998 |
| 34 | 102840 |
| 35 | 199861 |
| 36 | 293758 |
| 37 | 368318 |
| 38 | 371583 |
| 39 | 382472 |
| 40 | 440644 |
| 41 | 523875 |
| 42 | 841338 |