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 | 4 |
| 2 | 19 |
| 3 | 52 |
| 4 | 110 |
| 5 | 200 |
| 6 | 329 |
| 7 | 504 |
| 8 | 732 |
| 9 | 1020 |
| 10 | 1375 |
| 11 | 1804 |
| 12 | 2314 |
| 13 | 2912 |
| 14 | 3605 |
| 15 | 4400 |
| 16 | 5304 |
| 17 | 6324 |
| 18 | 7467 |
| 19 | 8740 |
| 20 | 10150 |
| 21 | 11704 |
| 22 | 13409 |
| 23 | 15272 |
| 24 | 17300 |
| 25 | 19500 |
| 26 | 21879 |
| 27 | 24444 |
| 28 | 27202 |
| 29 | 30160 |
| 30 | 33325 |
| 31 | 36704 |
| 32 | 40304 |
| 33 | 44132 |
| 34 | 48195 |
| 35 | 52500 |
| 36 | 57054 |
| 37 | 61864 |
| 38 | 66937 |
| 39 | 72280 |
| 40 | 77900 |
| 41 | 83804 |
| 42 | 89999 |
| 43 | 96492 |