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 | 0 |
| 1 | 1 |
| 2 | 4 |
| 3 | 1 |
| 4 | -12 |
| 5 | -24 |
| 6 | -10 |
| 7 | 32 |
| 8 | 63 |
| 9 | 33 |
| 10 | -54 |
| 11 | -121 |
| 12 | -77 |
| 13 | 71 |
| 14 | 194 |
| 15 | 146 |
| 16 | -74 |
| 17 | -278 |
| 18 | -243 |
| 19 | 54 |
| 20 | 365 |
| 21 | 369 |
| 22 | -4 |
| 23 | -448 |
| 24 | -522 |
| 25 | -83 |
| 26 | 515 |
| 27 | 697 |
| 28 | 212 |
| 29 | -558 |
| 30 | -889 |
| 31 | -388 |
| 32 | 565 |
| 33 | 1089 |
| 34 | 612 |
| 35 | -525 |
| 36 | -1285 |
| 37 | -881 |
| 38 | 428 |
| 39 | 1466 |
| 40 | 1192 |
| 41 | -267 |
| 42 | -1617 |
| 43 | -1538 |
| 44 | 34 |
| 45 | 1723 |
| 46 | 1908 |
| 47 | 273 |
| 48 | -1770 |
| 49 | -2290 |
| 50 | -656 |
| 51 | 1743 |
| 52 | 2668 |
| 53 | 1112 |
| 54 | -1629 |
| 55 | -3024 |
| 56 | -1636 |