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 | 0 |
| 2 | 1 |
| 3 | 7 |
| 4 | 27 |
| 5 | 65 |
| 6 | 147 |
| 7 | 261 |
| 8 | 461 |
| 9 | 737 |
| 10 | 1143 |
| 11 | 1637 |
| 12 | 2349 |
| 13 | 3217 |
| 14 | 4401 |
| 15 | 5769 |
| 16 | 7457 |
| 17 | 9433 |
| 18 | 11945 |
| 19 | 14753 |
| 20 | 18235 |
| 21 | 22173 |
| 22 | 26771 |
| 23 | 31801 |
| 24 | 37813 |
| 25 | 44449 |
| 26 | 52161 |
| 27 | 60489 |
| 28 | 69955 |
| 29 | 80289 |
| 30 | 92203 |
| 31 | 104941 |
| 32 | 119493 |
| 33 | 135261 |
| 34 | 152705 |
| 35 | 171205 |
| 36 | 191649 |
| 37 | 213473 |
| 38 | 237877 |