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 | 4240 |
| 2 | 75640 |
| 3 | 193720 |
| 4 | 259120 |
| 5 | 327104 |
| 6 | 669520 |
| 7 | 1385480 |
| 8 | 1613240 |
| 9 | 2231240 |
| 10 | 4185472 |
| 11 | 12228352 |
| 12 | 26373640 |
| 13 | 35095456 |
| 14 | 37497520 |
| 15 | 45085240 |
| 16 | 48211120 |
| 17 | 62156512 |
| 18 | 64754272 |
| 19 | 81263920 |
| 20 | 82228432 |
| 21 | 84099808 |
| 22 | 109455424 |
| 23 | 111330208 |
| 24 | 118899616 |
| 25 | 118988440 |
| 26 | 129663880 |
| 27 | 137013536 |
| 28 | 139367320 |