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 | 15 |
| 1 | 45 |
| 2 | 118 |
| 3 | 257 |
| 4 | 522 |
| 5 | 975 |
| 6 | 1752 |
| 7 | 2998 |
| 8 | 4987 |
| 9 | 8043 |
| 10 | 12693 |
| 11 | 19584 |
| 12 | 29719 |
| 13 | 44324 |
| 14 | 65210 |
| 15 | 94642 |
| 16 | 135805 |
| 17 | 192699 |
| 18 | 270822 |
| 19 | 377048 |
| 20 | 520624 |
| 21 | 713123 |
| 22 | 969784 |
| 23 | 1309646 |
| 24 | 1757447 |
| 25 | 2343931 |
| 26 | 3108553 |
| 27 | 4100220 |
| 28 | 5380964 |
| 29 | 7027376 |
| 30 | 9135769 |
| 31 | 11824507 |