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 | 6 |
| 4 | 18 |
| 5 | 42 |
| 6 | 94 |
| 7 | 180 |
| 8 | 348 |
| 9 | 602 |
| 10 | 1047 |
| 11 | 1692 |
| 12 | 2737 |
| 13 | 4194 |
| 14 | 6426 |
| 15 | 9450 |
| 16 | 13863 |
| 17 | 19716 |
| 18 | 27933 |
| 19 | 38616 |
| 20 | 53160 |
| 21 | 71748 |
| 22 | 96396 |
| 23 | 127440 |
| 24 | 167704 |
| 25 | 217740 |
| 26 | 281439 |
| 27 | 359654 |
| 28 | 457617 |
| 29 | 576630 |
| 30 | 723592 |
| 31 | 900396 |
| 32 | 1116033 |
| 33 | 1373166 |
| 34 | 1683327 |
| 35 | 2050212 |
| 36 | 2488416 |
| 37 | 3002934 |
| 38 | 3612072 |