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 | 1 |
| 2 | 2 |
| 3 | 12 |
| 4 | 54 |
| 5 | 76 |
| 6 | 90 |
| 7 | 216 |
| 8 | 423 |
| 9 | 514 |
| 10 | 531 |
| 11 | 621 |
| 12 | 2166 |
| 13 | 2241 |
| 14 | 2772 |
| 15 | 2976 |
| 16 | 4752 |
| 17 | 5154 |
| 18 | 5400 |
| 19 | 5481 |
| 20 | 6264 |
| 21 | 7290 |
| 22 | 7344 |
| 23 | 9018 |
| 24 | 9144 |
| 25 | 9470 |
| 26 | 9555 |
| 27 | 14094 |
| 28 | 14904 |
| 29 | 19494 |
| 30 | 21222 |
| 31 | 23780 |
| 32 | 25848 |
| 33 | 28323 |
| 34 | 34830 |
| 35 | 34911 |
| 36 | 38220 |
| 37 | 40122 |
| 38 | 48768 |
| 39 | 49079 |
| 40 | 55782 |
| 41 | 59400 |