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) |
|---|---|
| 3 | 1 |
| 4 | 6 |
| 5 | 17 |
| 6 | 45 |
| 7 | 75 |
| 8 | 144 |
| 9 | 202 |
| 10 | 330 |
| 11 | 425 |
| 12 | 630 |
| 13 | 771 |
| 14 | 1071 |
| 15 | 1267 |
| 16 | 1680 |
| 17 | 1940 |
| 18 | 2484 |
| 19 | 2817 |
| 20 | 3510 |
| 21 | 3925 |
| 22 | 4785 |
| 23 | 5291 |
| 24 | 6336 |
| 25 | 6942 |
| 26 | 8190 |
| 27 | 8905 |
| 28 | 10374 |
| 29 | 11207 |
| 30 | 12915 |
| 31 | 13875 |
| 32 | 15840 |
| 33 | 16936 |
| 34 | 19176 |
| 35 | 20417 |
| 36 | 22950 |
| 37 | 24345 |
| 38 | 27189 |
| 39 | 28747 |
| 40 | 31920 |