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 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 1 |
| 6 | 0 |
| 7 | 1 |
| 8 | 4 |
| 9 | 5 |
| 10 | -4 |
| 11 | 1 |
| 12 | 2 |
| 13 | 1 |
| 14 | -12 |
| 15 | -3 |
| 16 | 6 |
| 17 | 1 |
| 18 | 6 |
| 19 | 1 |
| 20 | -2 |
| 21 | -19 |
| 22 | -28 |
| 23 | 1 |
| 24 | 4 |
| 25 | 14 |
| 26 | -60 |
| 27 | 19 |
| 28 | -10 |
| 29 | 1 |
| 30 | -12 |
| 31 | 1 |
| 32 | 10 |
| 33 | -51 |
| 34 | -124 |
| 35 | -12 |
| 36 | 10 |
| 37 | 1 |
| 38 | -252 |
| 39 | -115 |
| 40 | 0 |
| 41 | 1 |
| 42 | -48 |
| 43 | 1 |
| 44 | -26 |
| 45 | 7 |
| 46 | -508 |
| 47 | 1 |
| 48 | 8 |
| 49 | 41 |
| 50 | 12 |
| 51 | -243 |
| 52 | -58 |
| 53 | 1 |
| 54 | 22 |
| 55 | -64 |
| 56 | -8 |
| 57 | -499 |
| 58 | -1020 |
| 59 | 1 |
| 60 | -12 |
| 61 | 1 |
| 62 | -2044 |
| 63 | -17 |
| 64 | 12 |
| 65 | -168 |
| 66 | -120 |
| 67 | 1 |
| 68 | -122 |
| 69 | -1011 |
| 70 | -54 |
| 71 | 1 |
| 72 | 18 |
| 73 | 1 |
| 74 | -4092 |
| 75 | 26 |
| 76 | -250 |
| 77 | -39 |
| 78 | -264 |
| 79 | 1 |
| 80 | 4 |