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 | 6 |
| 2 | 68 |
| 3 | 288 |
| 4 | 840 |
| 5 | 1948 |
| 6 | 3914 |
| 7 | 7074 |
| 8 | 11862 |
| 9 | 18732 |
| 10 | 28244 |
| 11 | 40970 |
| 12 | 57598 |
| 13 | 78816 |
| 14 | 105444 |
| 15 | 138284 |
| 16 | 178282 |
| 17 | 226362 |
| 18 | 283598 |
| 19 | 351026 |
| 20 | 429852 |
| 21 | 521230 |
| 22 | 626492 |
| 23 | 746910 |
| 24 | 883944 |
| 25 | 1038982 |
| 26 | 1213616 |
| 27 | 1409348 |
| 28 | 1627896 |
| 29 | 1870884 |
| 30 | 2140158 |
| 31 | 2437454 |
| 32 | 2764750 |
| 33 | 3123900 |