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 | -1 |
| 4 | 4 |
| 5 | -4 |
| 6 | 1 |
| 7 | 6 |
| 8 | -11 |
| 9 | 6 |
| 10 | -1 |
| 11 | 8 |
| 12 | -24 |
| 13 | 22 |
| 14 | -8 |
| 15 | 1 |
| 16 | 10 |
| 17 | -45 |
| 18 | 62 |
| 19 | -37 |
| 20 | 10 |
| 21 | -1 |
| 22 | 12 |
| 23 | -76 |
| 24 | 147 |
| 25 | -128 |
| 26 | 56 |
| 27 | -12 |
| 28 | 1 |
| 29 | 14 |
| 30 | -119 |
| 31 | 308 |
| 32 | -366 |
| 33 | 230 |
| 34 | -79 |
| 35 | 14 |
| 36 | -1 |
| 37 | 16 |
| 38 | -176 |
| 39 | 588 |
| 40 | -912 |
| 41 | 770 |
| 42 | -376 |
| 43 | 106 |
| 44 | -16 |
| 45 | 1 |
| 46 | 18 |
| 47 | -249 |
| 48 | 1044 |
| 49 | -2046 |
| 50 | 2222 |
| 51 | -1443 |
| 52 | 574 |
| 53 | -137 |
| 54 | 18 |
| 55 | -1 |
| 56 | 20 |
| 57 | -340 |
| 58 | 1749 |
| 59 | -4224 |
| 60 | 5720 |
| 61 | -4732 |
| 62 | 2485 |
| 63 | -832 |
| 64 | 172 |
| 65 | -20 |
| 66 | 1 |