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 | 1 |
| 1 | 3 |
| 2 | 6 |
| 3 | 13 |
| 4 | 24 |
| 5 | 42 |
| 6 | 73 |
| 7 | 120 |
| 8 | 192 |
| 9 | 302 |
| 10 | 465 |
| 11 | 702 |
| 12 | 1046 |
| 13 | 1536 |
| 14 | 2226 |
| 15 | 3195 |
| 16 | 4536 |
| 17 | 6378 |
| 18 | 8896 |
| 19 | 12306 |
| 20 | 16896 |
| 21 | 23045 |
| 22 | 31224 |
| 23 | 42048 |
| 24 | 56310 |
| 25 | 75000 |
| 26 | 99384 |
| 27 | 131072 |
| 28 | 172071 |
| 29 | 224910 |
| 30 | 292774 |
| 31 | 379608 |
| 32 | 490338 |
| 33 | 631104 |
| 34 | 809472 |
| 35 | 1034814 |
| 36 | 1318707 |
| 37 | 1675344 |
| 38 | 2122176 |
| 39 | 2680602 |
| 40 | 3376728 |
| 41 | 4242432 |
| 42 | 5316562 |
| 43 | 6646272 |