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) |
|---|---|
| 2 | 1 |
| 3 | 1 |
| 4 | 5 |
| 5 | 1 |
| 6 | 11 |
| 7 | 1 |
| 8 | 21 |
| 9 | -8 |
| 10 | 36 |
| 11 | 1 |
| 12 | 22 |
| 13 | 1 |
| 14 | 85 |
| 15 | -89 |
| 16 | 137 |
| 17 | 1 |
| 18 | -23 |
| 19 | 1 |
| 20 | 302 |
| 21 | -349 |
| 22 | 287 |
| 23 | 1 |
| 24 | 23 |
| 25 | -24 |
| 26 | 456 |
| 27 | -944 |
| 28 | 1177 |
| 29 | 1 |
| 30 | -903 |
| 31 | 1 |
| 32 | 2113 |
| 33 | -2078 |
| 34 | 970 |
| 35 | -559 |
| 36 | 709 |
| 37 | 1 |
| 38 | 1331 |
| 39 | -4003 |
| 40 | 4293 |
| 41 | 1 |
| 42 | -3323 |
| 43 | 1 |
| 44 | 9153 |
| 45 | -10694 |
| 46 | 2301 |
| 47 | 1 |
| 48 | 5869 |
| 49 | -48 |
| 50 | -4774 |
| 51 | -11474 |
| 52 | 20294 |
| 53 | 1 |
| 54 | -7334 |
| 55 | -14783 |