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 | 1 |
| 1 | 1 |
| 2 | 13 |
| 3 | 73 |
| 4 | 241 |
| 5 | 601 |
| 6 | 1261 |
| 7 | 2353 |
| 8 | 4033 |
| 9 | 6481 |
| 10 | 9901 |
| 11 | 14521 |
| 12 | 20593 |
| 13 | 28393 |
| 14 | 38221 |
| 15 | 50401 |
| 16 | 65281 |
| 17 | 83233 |
| 18 | 104653 |
| 19 | 129961 |
| 20 | 159601 |
| 21 | 194041 |
| 22 | 233773 |
| 23 | 279313 |
| 24 | 331201 |
| 25 | 390001 |
| 26 | 456301 |
| 27 | 530713 |
| 28 | 613873 |
| 29 | 706441 |
| 30 | 809101 |
| 31 | 922561 |
| 32 | 1047553 |
| 33 | 1184833 |
| 34 | 1335181 |
| 35 | 1499401 |