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 | 10 |
| 5 | 12 |
| 6 | 24 |
| 7 | 28 |
| 8 | 30 |
| 9 | 70 |
| 10 | 88 |
| 11 | 130 |
| 12 | 238 |
| 13 | 510 |
| 14 | 754 |
| 15 | 868 |
| 16 | 910 |
| 17 | 1330 |
| 18 | 2068 |
| 19 | 2590 |
| 20 | 2728 |
| 21 | 3304 |
| 22 | 4002 |
| 23 | 5110 |
| 24 | 5406 |
| 25 | 8554 |
| 26 | 8710 |
| 27 | 12958 |
| 28 | 15748 |
| 29 | 18430 |
| 30 | 20878 |
| 31 | 21238 |
| 32 | 23902 |
| 33 | 24178 |
| 34 | 32422 |
| 35 | 39928 |
| 36 | 46870 |
| 37 | 49210 |
| 38 | 53590 |
| 39 | 55678 |
| 40 | 57358 |
| 41 | 62248 |
| 42 | 67858 |
| 43 | 70414 |
| 44 | 79378 |
| 45 | 88198 |
| 46 | 95038 |
| 47 | 95758 |
| 48 | 95788 |
| 49 | 102238 |
| 50 | 114478 |