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 | 1 |
| 2 | 697 |
| 3 | 1969 |
| 4 | 3817 |
| 5 | 6241 |
| 6 | 9241 |
| 7 | 12817 |
| 8 | 16969 |
| 9 | 21697 |
| 10 | 27001 |
| 11 | 32881 |
| 12 | 39337 |
| 13 | 46369 |
| 14 | 53977 |
| 15 | 62161 |
| 16 | 70921 |
| 17 | 80257 |
| 18 | 90169 |
| 19 | 100657 |
| 20 | 111721 |
| 21 | 123361 |
| 22 | 135577 |
| 23 | 148369 |
| 24 | 161737 |
| 25 | 175681 |
| 26 | 190201 |
| 27 | 205297 |
| 28 | 220969 |
| 29 | 237217 |
| 30 | 254041 |
| 31 | 271441 |
| 32 | 289417 |
| 33 | 307969 |