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 | 45 |
| 2 | 35 |
| 3 | 285 |
| 4 | 30 |
| 5 | 725 |
| 6 | 255 |
| 7 | 1365 |
| 8 | 110 |
| 9 | 2205 |
| 10 | 675 |
| 11 | 3245 |
| 12 | 240 |
| 13 | 4485 |
| 14 | 1295 |
| 15 | 5925 |
| 16 | 420 |
| 17 | 7565 |
| 18 | 2115 |
| 19 | 9405 |
| 20 | 650 |
| 21 | 11445 |
| 22 | 3135 |
| 23 | 13685 |
| 24 | 930 |
| 25 | 16125 |
| 26 | 4355 |
| 27 | 18765 |
| 28 | 1260 |
| 29 | 21605 |
| 30 | 5775 |
| 31 | 24645 |
| 32 | 1640 |
| 33 | 27885 |
| 34 | 7395 |
| 35 | 31325 |
| 36 | 2070 |
| 37 | 34965 |
| 38 | 9215 |
| 39 | 38805 |
| 40 | 2550 |
| 41 | 42845 |
| 42 | 11235 |
| 43 | 47085 |