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 | 60 |
| 2 | 300 |
| 3 | 840 |
| 4 | 1800 |
| 5 | 3300 |
| 6 | 5460 |
| 7 | 8400 |
| 8 | 12240 |
| 9 | 17100 |
| 10 | 23100 |
| 11 | 30360 |
| 12 | 39000 |
| 13 | 49140 |
| 14 | 60900 |
| 15 | 74400 |
| 16 | 89760 |
| 17 | 107100 |
| 18 | 126540 |
| 19 | 148200 |
| 20 | 172200 |
| 21 | 198660 |
| 22 | 227700 |
| 23 | 259440 |
| 24 | 294000 |
| 25 | 331500 |
| 26 | 372060 |
| 27 | 415800 |
| 28 | 462840 |
| 29 | 513300 |
| 30 | 567300 |
| 31 | 624960 |
| 32 | 686400 |
| 33 | 751740 |
| 34 | 821100 |
| 35 | 894600 |