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) |
|---|---|
| 0 | 0 |
| 1 | 3 |
| 2 | 33 |
| 3 | 90 |
| 4 | 174 |
| 5 | 285 |
| 6 | 423 |
| 7 | 588 |
| 8 | 780 |
| 9 | 999 |
| 10 | 1245 |
| 11 | 1518 |
| 12 | 1818 |
| 13 | 2145 |
| 14 | 2499 |
| 15 | 2880 |
| 16 | 3288 |
| 17 | 3723 |
| 18 | 4185 |
| 19 | 4674 |
| 20 | 5190 |
| 21 | 5733 |
| 22 | 6303 |
| 23 | 6900 |
| 24 | 7524 |
| 25 | 8175 |
| 26 | 8853 |
| 27 | 9558 |
| 28 | 10290 |
| 29 | 11049 |
| 30 | 11835 |
| 31 | 12648 |
| 32 | 13488 |
| 33 | 14355 |
| 34 | 15249 |
| 35 | 16170 |
| 36 | 17118 |
| 37 | 18093 |
| 38 | 19095 |