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 | 0 |
| 2 | 3 |
| 3 | 49 |
| 4 | 535 |
| 5 | 647 |
| 6 | 700 |
| 7 | 742 |
| 8 | 1459 |
| 9 | 1844 |
| 10 | 4805 |
| 11 | 5523 |
| 12 | 5561 |
| 13 | 6524 |
| 14 | 6727 |
| 15 | 7511 |
| 16 | 8253 |
| 17 | 8960 |
| 18 | 10871 |
| 19 | 11599 |
| 20 | 12040 |
| 21 | 13258 |
| 22 | 15505 |
| 23 | 17293 |
| 24 | 17881 |
| 25 | 21115 |
| 26 | 21126 |
| 27 | 22036 |
| 28 | 25606 |
| 29 | 26526 |
| 30 | 27657 |
| 31 | 28598 |
| 32 | 29200 |
| 33 | 31951 |
| 34 | 33628 |
| 35 | 34083 |
| 36 | 35465 |
| 37 | 35623 |
| 38 | 36375 |
| 39 | 39084 |
| 40 | 39119 |
| 41 | 40362 |