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 | 30 |
| 2 | 1770 |
| 3 | 3810 |
| 4 | 4170 |
| 5 | 4470 |
| 6 | 4890 |
| 7 | 5910 |
| 8 | 5970 |
| 9 | 6810 |
| 10 | 8070 |
| 11 | 9210 |
| 12 | 10590 |
| 13 | 11370 |
| 14 | 11670 |
| 15 | 12030 |
| 16 | 12990 |
| 17 | 13470 |
| 18 | 13890 |
| 19 | 14370 |
| 20 | 14970 |
| 21 | 15630 |
| 22 | 16890 |
| 23 | 17070 |
| 24 | 17610 |
| 25 | 18510 |
| 26 | 18570 |
| 27 | 19290 |
| 28 | 19410 |
| 29 | 20190 |
| 30 | 20310 |
| 31 | 21270 |
| 32 | 22710 |
| 33 | 24810 |
| 34 | 25710 |
| 35 | 26310 |
| 36 | 27570 |
| 37 | 27870 |
| 38 | 29010 |
| 39 | 29490 |
| 40 | 29730 |