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 | 12 |
| 3 | 18 |
| 4 | 72 |
| 5 | 84 |
| 6 | 114 |
| 7 | 198 |
| 8 | 354 |
| 9 | 378 |
| 10 | 588 |
| 11 | 612 |
| 12 | 618 |
| 13 | 864 |
| 14 | 912 |
| 15 | 948 |
| 16 | 1032 |
| 17 | 1068 |
| 18 | 1134 |
| 19 | 1320 |
| 20 | 1410 |
| 21 | 1428 |
| 22 | 1452 |
| 23 | 1500 |
| 24 | 1830 |
| 25 | 1956 |
| 26 | 2046 |
| 27 | 2058 |
| 28 | 2172 |
| 29 | 2298 |
| 30 | 2448 |
| 31 | 2634 |
| 32 | 2748 |
| 33 | 2844 |
| 34 | 2856 |
| 35 | 3192 |
| 36 | 3246 |
| 37 | 3390 |
| 38 | 3474 |
| 39 | 3846 |
| 40 | 3906 |
| 41 | 4092 |
| 42 | 4182 |
| 43 | 4506 |
| 44 | 4842 |
| 45 | 4884 |
| 46 | 4890 |