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) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | -8 |
| 4 | 21 |
| 5 | -24 |
| 6 | -40 |
| 7 | 1 |
| 8 | 85 |
| 9 | 73 |
| 10 | -120 |
| 11 | 122 |
| 12 | -168 |
| 13 | -168 |
| 14 | 5 |
| 15 | 192 |
| 16 | 341 |
| 17 | -288 |
| 18 | 365 |
| 19 | -360 |
| 20 | -504 |
| 21 | -8 |
| 22 | 610 |
| 23 | 530 |
| 24 | -680 |
| 25 | 601 |
| 26 | -840 |
| 27 | -656 |
| 28 | 21 |
| 29 | 842 |
| 30 | 960 |
| 31 | -960 |
| 32 | 1365 |
| 33 | -976 |
| 34 | -1440 |
| 35 | -24 |
| 36 | 1533 |
| 37 | 1370 |
| 38 | -1800 |
| 39 | 1344 |
| 40 | -2040 |
| 41 | -1680 |
| 42 | -40 |
| 43 | 1850 |
| 44 | 2562 |
| 45 | -1752 |
| 46 | 2650 |
| 47 | -2208 |
| 48 | -2728 |
| 49 | 1 |
| 50 | 3005 |
| 51 | 2304 |
| 52 | -3528 |
| 53 | 2810 |