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 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| 10 | 0 |
| 11 | 0 |
| 12 | 4 |
| 13 | 22 |
| 14 | 68 |
| 15 | 156 |
| 16 | 320 |
| 17 | 584 |
| 18 | 1008 |
| 19 | 1622 |
| 20 | 2520 |
| 21 | 3734 |
| 22 | 5428 |
| 23 | 7612 |
| 24 | 10488 |
| 25 | 14126 |
| 26 | 18744 |
| 27 | 24390 |
| 28 | 31436 |
| 29 | 39914 |
| 30 | 50212 |
| 31 | 62390 |
| 32 | 76932 |
| 33 | 93918 |
| 34 | 113960 |
| 35 | 137058 |
| 36 | 163896 |
| 37 | 194632 |
| 38 | 229988 |
| 39 | 270018 |
| 40 | 315712 |
| 41 | 367106 |
| 42 | 425220 |
| 43 | 490164 |
| 44 | 563080 |
| 45 | 644096 |