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 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | 1 |
| 10 | 1 |
| 11 | -6 |
| 12 | -14 |
| 13 | -6 |
| 14 | 1 |
| 15 | 1 |
| 16 | -32 |
| 17 | -87 |
| 18 | -87 |
| 19 | -32 |
| 20 | 1 |
| 21 | 1 |
| 22 | -120 |
| 23 | -363 |
| 24 | -484 |
| 25 | -363 |
| 26 | -120 |
| 27 | 1 |
| 28 | 1 |
| 29 | -415 |
| 30 | -1339 |
| 31 | -2067 |
| 32 | -2067 |
| 33 | -1339 |
| 34 | -415 |
| 35 | 1 |
| 36 | 1 |
| 37 | -1414 |
| 38 | -4742 |
| 39 | -7942 |
| 40 | -9230 |
| 41 | -7942 |
| 42 | -4742 |
| 43 | -1414 |
| 44 | 1 |
| 45 | 1 |
| 46 | -4844 |
| 47 | -16643 |
| 48 | -29240 |
| 49 | -36992 |
| 50 | -36992 |
| 51 | -29240 |