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 | -4 |
| 3 | 2 |
| 4 | 8 |
| 5 | -5 |
| 6 | -8 |
| 7 | 6 |
| 8 | 0 |
| 9 | -23 |
| 10 | 20 |
| 11 | 32 |
| 12 | 16 |
| 13 | -38 |
| 14 | -24 |
| 15 | -10 |
| 16 | -64 |
| 17 | 26 |
| 18 | 92 |
| 19 | 100 |
| 20 | -40 |
| 21 | 12 |
| 22 | -128 |
| 23 | -78 |
| 24 | 0 |
| 25 | 25 |
| 26 | 152 |
| 27 | -100 |
| 28 | 48 |
| 29 | -50 |
| 30 | 40 |
| 31 | -108 |
| 32 | 256 |
| 33 | 64 |
| 34 | -104 |
| 35 | -30 |
| 36 | -184 |
| 37 | 266 |
| 38 | -400 |
| 39 | -76 |
| 40 | 0 |
| 41 | 22 |
| 42 | -48 |
| 43 | 442 |
| 44 | 256 |
| 45 | 115 |
| 46 | 312 |
| 47 | -514 |
| 48 | -128 |
| 49 | -307 |
| 50 | -100 |
| 51 | 52 |
| 52 | -304 |
| 53 | 2 |
| 54 | 400 |
| 55 | -160 |
| 56 | 0 |
| 57 | 200 |
| 58 | 200 |
| 59 | 500 |
| 60 | -80 |
| 61 | -518 |
| 62 | 432 |
| 63 | -138 |
| 64 | -512 |