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 | 17010 |
| 2 | 51030 |
| 3 | 153090 |
| 4 | 459270 |
| 5 | 1377810 |
| 6 | 4133430 |
| 7 | 6004530 |
| 8 | 6106590 |
| 9 | 6140610 |
| 10 | 6242670 |
| 11 | 6344730 |
| 12 | 6446790 |
| 13 | 6514830 |
| 14 | 6616890 |
| 15 | 6752970 |
| 16 | 6821010 |
| 17 | 6957090 |
| 18 | 7127190 |
| 19 | 7161210 |
| 20 | 7331310 |
| 21 | 7365330 |
| 22 | 7467390 |
| 23 | 7535430 |
| 24 | 7637490 |
| 25 | 7773570 |
| 26 | 7841610 |
| 27 | 7875630 |
| 28 | 7943670 |
| 29 | 8147790 |
| 30 | 8283870 |