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 | -2 |
| 1 | 7 |
| 2 | 3 |
| 3 | -26 |
| 4 | -13 |
| 5 | -7 |
| 6 | 96 |
| 7 | 48 |
| 8 | 24 |
| 9 | 12 |
| 10 | -362 |
| 11 | -181 |
| 12 | -91 |
| 13 | -46 |
| 14 | -23 |
| 15 | 1350 |
| 16 | 675 |
| 17 | 337 |
| 18 | 168 |
| 19 | 84 |
| 20 | 42 |
| 21 | -5042 |
| 22 | -2521 |
| 23 | -1261 |
| 24 | -631 |
| 25 | -316 |
| 26 | -158 |
| 27 | -79 |
| 28 | 18816 |
| 29 | 9408 |
| 30 | 4704 |
| 31 | 2352 |
| 32 | 1176 |
| 33 | 588 |
| 34 | 294 |
| 35 | 147 |
| 36 | -70226 |
| 37 | -35113 |
| 38 | -17557 |
| 39 | -8779 |
| 40 | -4390 |
| 41 | -2195 |
| 42 | -1098 |
| 43 | -549 |
| 44 | -275 |
| 45 | 262086 |
| 46 | 131043 |
| 47 | 65521 |
| 48 | 32760 |
| 49 | 16380 |
| 50 | 8190 |
| 51 | 4095 |