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 | -5 |
| 1 | 6 |
| 2 | 0 |
| 3 | -11 |
| 4 | 17 |
| 5 | -6 |
| 6 | -22 |
| 7 | 45 |
| 8 | -29 |
| 9 | -38 |
| 10 | 112 |
| 11 | -103 |
| 12 | -47 |
| 13 | 262 |
| 14 | -318 |
| 15 | 9 |
| 16 | 571 |
| 17 | -898 |
| 18 | 336 |
| 19 | 1133 |
| 20 | -2367 |
| 21 | 1570 |
| 22 | 1930 |
| 23 | -5867 |
| 24 | 5507 |
| 25 | 2290 |
| 26 | -13664 |
| 27 | 16881 |
| 28 | -927 |
| 29 | -29618 |
| 30 | 47426 |
| 31 | -18735 |
| 32 | -58309 |
| 33 | 124470 |
| 34 | -84896 |
| 35 | -97883 |
| 36 | 307249 |
| 37 | -294262 |
| 38 | -110870 |
| 39 | 712381 |
| 40 | -895773 |
| 41 | 72522 |
| 42 | 1535632 |
| 43 | -2503927 |
| 44 | 1040817 |
| 45 | 2998742 |