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 | 7 |
| 2 | 28 |
| 3 | 84 |
| 4 | 210 |
| 5 | 462 |
| 6 | 923 |
| 7 | 1709 |
| 8 | 2975 |
| 9 | 4921 |
| 10 | 7798 |
| 11 | 11914 |
| 12 | 17640 |
| 13 | 25416 |
| 14 | 35757 |
| 15 | 49259 |
| 16 | 66605 |
| 17 | 88571 |
| 18 | 116032 |
| 19 | 149968 |
| 20 | 191470 |
| 21 | 241746 |
| 22 | 302127 |
| 23 | 374073 |
| 24 | 459179 |
| 25 | 559181 |
| 26 | 675962 |
| 27 | 811558 |
| 28 | 968164 |
| 29 | 1148140 |