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 | 4 |
| 2 | -1 |
| 3 | -2 |
| 4 | 1 |
| 5 | -5 |
| 6 | -7 |
| 7 | -5 |
| 8 | 1 |
| 9 | -2 |
| 10 | -1 |
| 11 | 4 |
| 12 | 0 |
| 13 | -8 |
| 14 | 0 |
| 15 | 12 |
| 16 | -1 |
| 17 | -10 |
| 18 | -3 |
| 19 | 8 |
| 20 | -6 |
| 21 | -16 |
| 22 | -1 |
| 23 | 18 |
| 24 | 28 |
| 25 | 42 |
| 26 | 31 |
| 27 | 24 |
| 28 | 33 |
| 29 | 46 |
| 30 | 34 |
| 31 | 18 |
| 32 | 38 |
| 33 | 54 |
| 34 | 34 |
| 35 | 10 |
| 36 | -5 |
| 37 | -24 |
| 38 | -7 |
| 39 | 14 |
| 40 | 39 |
| 41 | 68 |
| 42 | 101 |
| 43 | 125 |
| 44 | 100 |
| 45 | 79 |
| 46 | 62 |
| 47 | 36 |
| 48 | 14 |
| 49 | -4 |
| 50 | 14 |
| 51 | 36 |
| 52 | 62 |
| 53 | 39 |
| 54 | 12 |
| 55 | -19 |
| 56 | -54 |
| 57 | -93 |
| 58 | -123 |
| 59 | -89 |
| 60 | -59 |
| 61 | -93 |
| 62 | -131 |
| 63 | -160 |
| 64 | -193 |
| 65 | -162 |