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 | -3 |
| 3 | 0 |
| 4 | -7 |
| 5 | -4 |
| 6 | 2 |
| 7 | -15 |
| 8 | -18 |
| 9 | -2 |
| 10 | 5 |
| 11 | -31 |
| 12 | -64 |
| 13 | -28 |
| 14 | 5 |
| 15 | 9 |
| 16 | -63 |
| 17 | -210 |
| 18 | -158 |
| 19 | -25 |
| 20 | 19 |
| 21 | 14 |
| 22 | -127 |
| 23 | -664 |
| 24 | -748 |
| 25 | -271 |
| 26 | 9 |
| 27 | 42 |
| 28 | 20 |
| 29 | -255 |
| 30 | -2058 |
| 31 | -3302 |
| 32 | -1825 |
| 33 | -317 |
| 34 | 98 |
| 35 | 76 |
| 36 | 27 |
| 37 | -511 |
| 38 | -6304 |
| 39 | -14068 |
| 40 | -10735 |
| 41 | -3351 |
| 42 | -126 |
| 43 | 272 |
| 44 | 123 |
| 45 | 35 |
| 46 | -1023 |
| 47 | -19170 |
| 48 | -58718 |
| 49 | -59425 |
| 50 | -26141 |
| 51 | -4606 |
| 52 | 580 |
| 53 | 567 |
| 54 | 185 |
| 55 | 44 |