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 | 5 |
| 3 | 15 |
| 4 | 33 |
| 5 | 71 |
| 6 | 125 |
| 7 | 227 |
| 8 | 361 |
| 9 | 567 |
| 10 | 821 |
| 11 | 1219 |
| 12 | 1697 |
| 13 | 2311 |
| 14 | 3021 |
| 15 | 4019 |
| 16 | 5161 |
| 17 | 6591 |
| 18 | 8197 |
| 19 | 10219 |
| 20 | 12465 |
| 21 | 15111 |
| 22 | 18013 |
| 23 | 21651 |
| 24 | 25625 |
| 25 | 30143 |
| 26 | 35029 |
| 27 | 40955 |
| 28 | 47345 |
| 29 | 54559 |
| 30 | 62285 |
| 31 | 71035 |
| 32 | 80361 |
| 33 | 90807 |
| 34 | 101893 |
| 35 | 114771 |
| 36 | 128417 |
| 37 | 143287 |
| 38 | 158973 |
| 39 | 176915 |
| 40 | 195817 |