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 | 6870 |
| 2 | 25800 |
| 3 | 38238 |
| 4 | 125508 |
| 5 | 128112 |
| 6 | 220512 |
| 7 | 372612 |
| 8 | 3245688 |
| 9 | 4286748 |
| 10 | 15433968 |
| 11 | 19659138 |
| 12 | 23283852 |
| 13 | 23494650 |
| 14 | 23579262 |
| 15 | 26233368 |
| 16 | 32131272 |
| 17 | 32380728 |
| 18 | 34775988 |
| 19 | 41299848 |
| 20 | 58705260 |
| 21 | 61470132 |
| 22 | 63588432 |
| 23 | 63873960 |
| 24 | 91649652 |
| 25 | 92774808 |
| 26 | 106956252 |
| 27 | 124336212 |
| 28 | 159723300 |