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 | 9 |
| 2 | 81 |
| 3 | 261 |
| 4 | 603 |
| 5 | 1161 |
| 6 | 1989 |
| 7 | 3141 |
| 8 | 4671 |
| 9 | 6633 |
| 10 | 9081 |
| 11 | 12069 |
| 12 | 15651 |
| 13 | 19881 |
| 14 | 24813 |
| 15 | 30501 |
| 16 | 36999 |
| 17 | 44361 |
| 18 | 52641 |
| 19 | 61893 |
| 20 | 72171 |
| 21 | 83529 |
| 22 | 96021 |
| 23 | 109701 |
| 24 | 124623 |
| 25 | 140841 |
| 26 | 158409 |
| 27 | 177381 |
| 28 | 197811 |
| 29 | 219753 |
| 30 | 243261 |
| 31 | 268389 |
| 32 | 295191 |
| 33 | 323721 |
| 34 | 354033 |
| 35 | 386181 |