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 | 2 |
| 2 | -1 |
| 3 | 0 |
| 4 | 3 |
| 5 | 8 |
| 6 | -4 |
| 7 | -4 |
| 8 | -3 |
| 9 | 12 |
| 10 | 14 |
| 11 | 68 |
| 12 | 6 |
| 13 | 24 |
| 14 | 62 |
| 15 | 96 |
| 16 | 195 |
| 17 | 416 |
| 18 | 86 |
| 19 | 212 |
| 20 | 270 |
| 21 | 720 |
| 22 | 956 |
| 23 | 2204 |
| 24 | 584 |
| 25 | 1160 |
| 26 | 1788 |
| 27 | 3660 |
| 28 | 5454 |
| 29 | 11192 |
| 30 | -300 |
| 31 | -48 |
| 32 | -429 |
| 33 | -228 |
| 34 | -820 |
| 35 | 20 |
| 36 | -260 |
| 37 | -4 |
| 38 | -376 |
| 39 | 60 |
| 40 | -420 |
| 41 | 548 |
| 42 | -1462 |
| 43 | 264 |
| 44 | -1758 |
| 45 | 540 |
| 46 | -2902 |
| 47 | 3056 |
| 48 | -960 |
| 49 | 1680 |
| 50 | 80 |
| 51 | 3900 |
| 52 | 4086 |
| 53 | 15644 |
| 54 | -3320 |
| 55 | 8212 |
| 56 | 1896 |
| 57 | 25500 |
| 58 | 16904 |
| 59 | 78632 |
| 60 | -850 |
| 61 | -24 |
| 62 | 150 |