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 | 150 |
| 2 | 186 |
| 3 | 324 |
| 4 | 376 |
| 5 | 666 |
| 6 | 2046 |
| 7 | 3000 |
| 8 | 82650 |
| 9 | 100384 |
| 10 | 466716 |
| 11 | 1322316 |
| 12 | 4049584 |
| 13 | 67820074 |
| 14 | 110003884 |
| 15 | 135734074 |
| 16 | 156502836 |
| 17 | 196043286 |
| 18 | 213017754 |
| 19 | 238849000 |
| 20 | 261405396 |
| 21 | 289940826 |
| 22 | 310507774 |
| 23 | 365294050 |
| 24 | 398891964 |
| 25 | 446667216 |