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 | 6 |
| 4 | 3 |
| 5 | 2 |
| 6 | 5 |
| 7 | -7 |
| 8 | 9 |
| 9 | -1 |
| 10 | 3 |
| 11 | -10 |
| 12 | -3 |
| 13 | 8 |
| 14 | 3 |
| 15 | -22 |
| 16 | 6 |
| 17 | -2 |
| 18 | -25 |
| 19 | 36 |
| 20 | 5 |
| 21 | 8 |
| 22 | -12 |
| 23 | -31 |
| 24 | -8 |
| 25 | 2 |
| 26 | -18 |
| 27 | 5 |
| 28 | -46 |
| 29 | -52 |
| 30 | -1 |
| 31 | 27 |
| 32 | -28 |
| 33 | -3 |
| 34 | 9 |
| 35 | -17 |
| 36 | -31 |
| 37 | -18 |
| 38 | 59 |
| 39 | -19 |
| 40 | 33 |
| 41 | 65 |
| 42 | -37 |
| 43 | -22 |
| 44 | 6 |
| 45 | 15 |
| 46 | 69 |
| 47 | 9 |
| 48 | 39 |
| 49 | -85 |
| 50 | 25 |
| 51 | -42 |
| 52 | -25 |
| 53 | -43 |
| 54 | -9 |
| 55 | -91 |
| 56 | -30 |
| 57 | -12 |
| 58 | -52 |
| 59 | -13 |
| 60 | 68 |
| 61 | 42 |
| 62 | -112 |
| 63 | 35 |
| 64 | -115 |
| 65 | 20 |
| 66 | -37 |
| 67 | 8 |
| 68 | -39 |
| 69 | -63 |
| 70 | 48 |
| 71 | -19 |
| 72 | -136 |
| 73 | -43 |
| 74 | 21 |
| 75 | -44 |
| 76 | 9 |
| 77 | -72 |
| 78 | -3 |
| 79 | -47 |
| 80 | 125 |