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 | -24 |
| 4 | 41 |
| 5 | -60 |
| 6 | 70 |
| 7 | -124 |
| 8 | 206 |
| 9 | -244 |
| 10 | 236 |
| 11 | -368 |
| 12 | 560 |
| 13 | -564 |
| 14 | 566 |
| 15 | -896 |
| 16 | 1175 |
| 17 | -1144 |
| 18 | 1180 |
| 19 | -1544 |
| 20 | 2042 |
| 21 | -2168 |
| 22 | 1942 |
| 23 | -2604 |
| 24 | 3650 |
| 25 | -3336 |
| 26 | 3100 |
| 27 | -4304 |
| 28 | 5096 |
| 29 | -4964 |
| 30 | 4940 |
| 31 | -5988 |
| 32 | 7720 |
| 33 | -7528 |
| 34 | 6636 |
| 35 | -8616 |
| 36 | 10809 |
| 37 | -9884 |
| 38 | 9126 |
| 39 | -12064 |
| 40 | 14548 |
| 41 | -13248 |
| 42 | 12796 |
| 43 | -15184 |
| 44 | 18192 |
| 45 | -18412 |
| 46 | 15830 |