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 | 6 |
| 3 | 18 |
| 4 | 44 |
| 5 | 90 |
| 6 | 174 |
| 7 | 308 |
| 8 | 528 |
| 9 | 864 |
| 10 | 1380 |
| 11 | 2134 |
| 12 | 3252 |
| 13 | 4836 |
| 14 | 7098 |
| 15 | 10245 |
| 16 | 14624 |
| 17 | 20587 |
| 18 | 28728 |
| 19 | 39634 |
| 20 | 54260 |
| 21 | 73605 |
| 22 | 99154 |
| 23 | 132526 |
| 24 | 176088 |
| 25 | 232375 |
| 26 | 305006 |
| 27 | 398007 |
| 28 | 516852 |
| 29 | 667696 |
| 30 | 858840 |