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 | 4 |
| 2 | 15 |
| 3 | 45 |
| 4 | 111 |
| 5 | 232 |
| 6 | 422 |
| 7 | 704 |
| 8 | 1129 |
| 9 | 1667 |
| 10 | 2403 |
| 11 | 3287 |
| 12 | 4470 |
| 13 | 5810 |
| 14 | 7508 |
| 15 | 9414 |
| 16 | 11663 |
| 17 | 14363 |
| 18 | 17454 |
| 19 | 20715 |
| 20 | 24739 |
| 21 | 29214 |
| 22 | 33957 |
| 23 | 39183 |
| 24 | 45540 |
| 25 | 52056 |
| 26 | 59497 |
| 27 | 67181 |
| 28 | 75862 |
| 29 | 84831 |
| 30 | 95697 |
| 31 | 106608 |
| 32 | 117812 |
| 33 | 130356 |
| 34 | 143759 |
| 35 | 158617 |
| 36 | 174312 |
| 37 | 190500 |