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) |
|---|---|
| 2 | 3 |
| 3 | 9 |
| 4 | 35 |
| 5 | 77 |
| 6 | 191 |
| 7 | 321 |
| 8 | 591 |
| 9 | 941 |
| 10 | 1503 |
| 11 | 2097 |
| 12 | 3047 |
| 13 | 4173 |
| 14 | 5835 |
| 15 | 7577 |
| 16 | 9815 |
| 17 | 12341 |
| 18 | 15763 |
| 19 | 19361 |
| 20 | 24083 |
| 21 | 29317 |
| 22 | 35615 |
| 23 | 42041 |
| 24 | 50095 |
| 25 | 58853 |
| 26 | 69395 |
| 27 | 80129 |
| 28 | 92675 |
| 29 | 106133 |
| 30 | 122239 |
| 31 | 138969 |
| 32 | 158751 |
| 33 | 179845 |
| 34 | 203651 |
| 35 | 227777 |
| 36 | 255023 |
| 37 | 283805 |
| 38 | 316931 |
| 39 | 350441 |
| 40 | 387599 |