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 | -5 |
| 5 | 1 |
| 6 | -11 |
| 7 | -3 |
| 8 | -18 |
| 9 | -5 |
| 10 | -23 |
| 11 | -11 |
| 12 | -39 |
| 13 | -25 |
| 14 | -49 |
| 15 | -25 |
| 16 | -56 |
| 17 | -38 |
| 18 | -77 |
| 19 | -57 |
| 20 | -99 |
| 21 | -67 |
| 22 | -103 |
| 23 | -79 |
| 24 | -139 |
| 25 | -108 |
| 26 | -150 |
| 27 | -110 |
| 28 | -166 |
| 29 | -136 |
| 30 | -208 |
| 31 | -176 |
| 32 | -239 |
| 33 | -191 |
| 34 | -245 |
| 35 | -197 |
| 36 | -288 |
| 37 | -250 |
| 38 | -310 |
| 39 | -254 |
| 40 | -344 |
| 41 | -302 |
| 42 | -398 |
| 43 | -354 |
| 44 | -438 |
| 45 | -360 |
| 46 | -432 |
| 47 | -384 |
| 48 | -508 |
| 49 | -451 |
| 50 | -544 |
| 51 | -472 |
| 52 | -570 |
| 53 | -516 |
| 54 | -636 |
| 55 | -564 |
| 56 | -684 |
| 57 | -604 |