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 | 4 |
| 3 | 16 |
| 4 | 20 |
| 5 | 32 |
| 6 | 36 |
| 7 | 48 |
| 8 | 52 |
| 9 | 256 |
| 10 | 260 |
| 11 | 272 |
| 12 | 276 |
| 13 | 288 |
| 14 | 292 |
| 15 | 304 |
| 16 | 308 |
| 17 | 512 |
| 18 | 516 |
| 19 | 528 |
| 20 | 532 |
| 21 | 544 |
| 22 | 548 |
| 23 | 560 |
| 24 | 564 |
| 25 | 768 |
| 26 | 772 |
| 27 | 784 |
| 28 | 788 |
| 29 | 800 |
| 30 | 804 |
| 31 | 816 |
| 32 | 820 |
| 33 | 2048 |
| 34 | 2052 |
| 35 | 2064 |
| 36 | 2068 |
| 37 | 2080 |
| 38 | 2084 |
| 39 | 2096 |
| 40 | 2100 |
| 41 | 2304 |
| 42 | 2308 |
| 43 | 2320 |
| 44 | 2324 |
| 45 | 2336 |
| 46 | 2340 |
| 47 | 2352 |
| 48 | 2356 |
| 49 | 2560 |
| 50 | 2564 |