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) |
|---|---|
| 0 | 7 |
| 1 | 0 |
| 2 | 16 |
| 3 | -16 |
| 4 | 56 |
| 5 | -40 |
| 6 | 88 |
| 7 | -104 |
| 8 | 56 |
| 9 | 0 |
| 10 | 128 |
| 11 | -168 |
| 12 | 168 |
| 13 | -80 |
| 14 | 304 |
| 15 | -408 |
| 16 | 56 |
| 17 | 0 |
| 18 | 128 |
| 19 | -128 |
| 20 | 448 |
| 21 | -320 |
| 22 | 704 |
| 23 | -872 |
| 24 | 168 |
| 25 | 0 |
| 26 | 384 |
| 27 | -464 |
| 28 | 784 |
| 29 | -480 |
| 30 | 1312 |
| 31 | -1720 |
| 32 | 56 |
| 33 | 0 |
| 34 | 128 |
| 35 | -128 |
| 36 | 448 |
| 37 | -320 |
| 38 | 704 |
| 39 | -832 |
| 40 | 448 |
| 41 | 0 |
| 42 | 1024 |
| 43 | -1344 |
| 44 | 1344 |
| 45 | -640 |
| 46 | 2432 |
| 47 | -3304 |
| 48 | 168 |
| 49 | 0 |
| 50 | 384 |
| 51 | -384 |
| 52 | 1344 |
| 53 | -960 |
| 54 | 2112 |
| 55 | -2576 |
| 56 | 784 |
| 57 | 0 |