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 | 24 |
| 3 | 189 |
| 4 | 832 |
| 5 | 2625 |
| 6 | 6696 |
| 7 | 14749 |
| 8 | 29184 |
| 9 | 53217 |
| 10 | 91000 |
| 11 | 147741 |
| 12 | 229824 |
| 13 | 344929 |
| 14 | 502152 |
| 15 | 712125 |
| 16 | 987136 |
| 17 | 1341249 |
| 18 | 1790424 |
| 19 | 2352637 |
| 20 | 3048000 |
| 21 | 3898881 |
| 22 | 4930024 |
| 23 | 6168669 |
| 24 | 7644672 |
| 25 | 9390625 |
| 26 | 11441976 |
| 27 | 13837149 |
| 28 | 16617664 |
| 29 | 19828257 |
| 30 | 23517000 |
| 31 | 27735421 |
| 32 | 32538624 |
| 33 | 37985409 |
| 34 | 44138392 |
| 35 | 51064125 |
| 36 | 58833216 |
| 37 | 67520449 |
| 38 | 77204904 |
| 39 | 87970077 |
| 40 | 99904000 |
| 41 | 113099361 |
| 42 | 127653624 |