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 | 5 |
| 3 | 15 |
| 4 | 36 |
| 5 | 75 |
| 6 | 143 |
| 7 | 255 |
| 8 | 433 |
| 9 | 707 |
| 10 | 1119 |
| 11 | 1725 |
| 12 | 2602 |
| 13 | 3851 |
| 14 | 5607 |
| 15 | 8046 |
| 16 | 11399 |
| 17 | 15963 |
| 18 | 22123 |
| 19 | 30369 |
| 20 | 41328 |
| 21 | 55792 |
| 22 | 74763 |
| 23 | 99496 |
| 24 | 131566 |
| 25 | 172931 |
| 26 | 226027 |
| 27 | 293864 |
| 28 | 380160 |
| 29 | 489480 |
| 30 | 627428 |