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 | 6 |
| 3 | 34 |
| 4 | 112 |
| 5 | 336 |
| 6 | 652 |
| 7 | 1530 |
| 8 | 2752 |
| 9 | 3952 |
| 10 | 7606 |
| 11 | 11794 |
| 12 | 15096 |
| 13 | 24720 |
| 14 | 33998 |
| 15 | 36154 |
| 16 | 60928 |
| 17 | 79616 |
| 18 | 94660 |
| 19 | 128514 |
| 20 | 159600 |
| 21 | 174868 |
| 22 | 239806 |
| 23 | 290394 |
| 24 | 329568 |
| 25 | 413376 |
| 26 | 486934 |
| 27 | 547126 |
| 28 | 665392 |
| 29 | 772240 |
| 30 | 821076 |
| 31 | 1021194 |
| 32 | 1164800 |
| 33 | 1280636 |
| 34 | 1500358 |
| 35 | 1694690 |
| 36 | 1863288 |
| 37 | 2135376 |
| 38 | 2383518 |
| 39 | 2592154 |