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 | 4 |
| 2 | 6 |
| 3 | 8 |
| 4 | 12 |
| 5 | 14 |
| 6 | 16 |
| 7 | 20 |
| 8 | 24 |
| 9 | 40 |
| 10 | 48 |
| 11 | 56 |
| 12 | 60 |
| 13 | 66 |
| 14 | 80 |
| 15 | 104 |
| 16 | 120 |
| 17 | 140 |
| 18 | 176 |
| 19 | 204 |
| 20 | 240 |
| 21 | 260 |
| 22 | 266 |
| 23 | 476 |
| 24 | 560 |
| 25 | 696 |
| 26 | 728 |
| 27 | 920 |
| 28 | 1020 |
| 29 | 1040 |
| 30 | 1292 |
| 31 | 1508 |
| 32 | 1634 |
| 33 | 1736 |
| 34 | 1820 |
| 35 | 1976 |
| 36 | 2320 |
| 37 | 2544 |
| 38 | 2660 |
| 39 | 3416 |
| 40 | 3440 |
| 41 | 3848 |
| 42 | 4136 |
| 43 | 4686 |
| 44 | 4756 |
| 45 | 5180 |
| 46 | 5456 |
| 47 | 6188 |
| 48 | 6608 |
| 49 | 7280 |
| 50 | 8004 |
| 51 | 8816 |