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 | 10 |
| 2 | 100 |
| 3 | 270 |
| 4 | 1161 |
| 5 | 3445 |
| 6 | 8455 |
| 7 | 26908 |
| 8 | 82861 |
| 9 | 228060 |
| 10 | 672760 |
| 11 | 2029041 |
| 12 | 5846337 |
| 13 | 17039101 |
| 14 | 50518174 |
| 15 | 147655795 |
| 16 | 430953736 |
| 17 | 1267685262 |
| 18 | 3717105229 |
| 19 | 10874111625 |
| 20 | 31898934243 |
| 21 | 93554384968 |
| 22 | 274033182253 |
| 23 | 803273682808 |
| 24 | 2355253402240 |