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 | 0 |
| 2 | 1 |
| 3 | 7 |
| 4 | 22 |
| 5 | 54 |
| 6 | 105 |
| 7 | 188 |
| 8 | 307 |
| 9 | 459 |
| 10 | 690 |
| 11 | 937 |
| 12 | 1307 |
| 13 | 1680 |
| 14 | 2260 |
| 15 | 2740 |
| 16 | 3588 |
| 17 | 4221 |
| 18 | 5402 |
| 19 | 6163 |
| 20 | 7714 |
| 21 | 8694 |
| 22 | 10723 |
| 23 | 11758 |
| 24 | 14449 |
| 25 | 15574 |
| 26 | 18884 |
| 27 | 20320 |
| 28 | 24228 |
| 29 | 25626 |
| 30 | 30768 |
| 31 | 32038 |
| 32 | 37985 |
| 33 | 39826 |
| 34 | 46515 |
| 35 | 47898 |
| 36 | 56877 |
| 37 | 57754 |
| 38 | 67433 |
| 39 | 69450 |
| 40 | 80062 |
| 41 | 81103 |
| 42 | 95034 |
| 43 | 94941 |