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 | 2 |
| 3 | 2 |
| 4 | 2 |
| 5 | 1 |
| 6 | 1 |
| 7 | -1 |
| 8 | -1 |
| 9 | -2 |
| 10 | -3 |
| 11 | -4 |
| 12 | -4 |
| 13 | -4 |
| 14 | -4 |
| 15 | -3 |
| 16 | -4 |
| 17 | -2 |
| 18 | -2 |
| 19 | 2 |
| 20 | 2 |
| 21 | 6 |
| 22 | 7 |
| 23 | 11 |
| 24 | 11 |
| 25 | 19 |
| 26 | 19 |
| 27 | 23 |
| 28 | 26 |
| 29 | 31 |
| 30 | 31 |
| 31 | 41 |
| 32 | 41 |
| 33 | 46 |
| 34 | 50 |
| 35 | 52 |
| 36 | 54 |
| 37 | 62 |
| 38 | 62 |
| 39 | 60 |
| 40 | 64 |
| 41 | 66 |
| 42 | 66 |
| 43 | 66 |
| 44 | 66 |
| 45 | 60 |
| 46 | 68 |
| 47 | 57 |
| 48 | 57 |
| 49 | 50 |
| 50 | 52 |
| 51 | 38 |
| 52 | 40 |
| 53 | 22 |
| 54 | 22 |
| 55 | 0 |
| 56 | 5 |
| 57 | -17 |
| 58 | -19 |
| 59 | -50 |
| 60 | -50 |
| 61 | -80 |
| 62 | -80 |
| 63 | -121 |
| 64 | -122 |
| 65 | -162 |
| 66 | -157 |
| 67 | -211 |
| 68 | -211 |
| 69 | -260 |
| 70 | -271 |