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 | 5 |
| 2 | 13 |
| 3 | 17 |
| 4 | 25 |
| 5 | 25 |
| 6 | 33 |
| 7 | 21 |
| 8 | 9 |
| 9 | -15 |
| 10 | -23 |
| 11 | -3 |
| 12 | -11 |
| 13 | -31 |
| 14 | -47 |
| 15 | -35 |
| 16 | 5 |
| 17 | -47 |
| 18 | -83 |
| 19 | -75 |
| 20 | -211 |
| 21 | -295 |
| 22 | -267 |
| 23 | -267 |
| 24 | -99 |
| 25 | -107 |
| 26 | -159 |
| 27 | -415 |
| 28 | -347 |
| 29 | -679 |
| 30 | -279 |
| 31 | -583 |
| 32 | -395 |
| 33 | -839 |
| 34 | -1031 |
| 35 | -1291 |
| 36 | -1139 |
| 37 | -1883 |
| 38 | -1519 |
| 39 | -1643 |
| 40 | -855 |
| 41 | -1591 |
| 42 | -1571 |
| 43 | -1851 |
| 44 | -1195 |
| 45 | -2419 |
| 46 | -1923 |
| 47 | -2179 |
| 48 | -891 |
| 49 | -1919 |
| 50 | -2535 |