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) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 18 |
| 3 | 72 |
| 4 | 184 |
| 5 | 375 |
| 6 | 666 |
| 7 | 1078 |
| 8 | 1632 |
| 9 | 2349 |
| 10 | 3250 |
| 11 | 4356 |
| 12 | 5688 |
| 13 | 7267 |
| 14 | 9114 |
| 15 | 11250 |
| 16 | 13696 |
| 17 | 16473 |
| 18 | 19602 |
| 19 | 23104 |
| 20 | 27000 |
| 21 | 31311 |
| 22 | 36058 |
| 23 | 41262 |
| 24 | 46944 |
| 25 | 53125 |
| 26 | 59826 |
| 27 | 67068 |
| 28 | 74872 |
| 29 | 83259 |
| 30 | 92250 |
| 31 | 101866 |
| 32 | 112128 |
| 33 | 123057 |
| 34 | 134674 |
| 35 | 147000 |
| 36 | 160056 |
| 37 | 173863 |
| 38 | 188442 |
| 39 | 203814 |
| 40 | 220000 |