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 | -8 |
| 2 | 20 |
| 3 | 0 |
| 4 | -70 |
| 5 | 64 |
| 6 | 56 |
| 7 | 0 |
| 8 | -125 |
| 9 | -160 |
| 10 | 308 |
| 11 | 0 |
| 12 | 110 |
| 13 | 0 |
| 14 | -520 |
| 15 | 0 |
| 16 | 57 |
| 17 | 560 |
| 18 | 0 |
| 19 | 0 |
| 20 | 182 |
| 21 | -512 |
| 22 | -880 |
| 23 | 0 |
| 24 | 1190 |
| 25 | -448 |
| 26 | 884 |
| 27 | 0 |
| 28 | 0 |
| 29 | 0 |
| 30 | -1400 |
| 31 | 0 |
| 32 | -1330 |
| 33 | 1000 |
| 34 | 1820 |
| 35 | 0 |
| 36 | -646 |
| 37 | 1280 |
| 38 | 0 |
| 39 | 0 |
| 40 | -1331 |
| 41 | -2464 |
| 42 | 380 |
| 43 | 0 |
| 44 | 1120 |
| 45 | 0 |
| 46 | 2576 |
| 47 | 0 |
| 48 | 0 |
| 49 | -880 |
| 50 | 1748 |
| 51 | 0 |
| 52 | -3850 |
| 53 | 0 |
| 54 | -3400 |
| 55 | 0 |
| 56 | 2703 |
| 57 | 4160 |
| 58 | -2500 |
| 59 | 0 |
| 60 | 3458 |