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 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 3 |
| 7 | 2 |
| 8 | 0 |
| 9 | -2 |
| 10 | -3 |
| 11 | -2 |
| 12 | 1 |
| 13 | 5 |
| 14 | 8 |
| 15 | 8 |
| 16 | 4 |
| 17 | -3 |
| 18 | -10 |
| 19 | -13 |
| 20 | -9 |
| 21 | 2 |
| 22 | 16 |
| 23 | 26 |
| 24 | 25 |
| 25 | 10 |
| 26 | -15 |
| 27 | -39 |
| 28 | -48 |
| 29 | -32 |
| 30 | 8 |
| 31 | 57 |
| 32 | 90 |
| 33 | 83 |
| 34 | 27 |
| 35 | -62 |
| 36 | -144 |
| 37 | -170 |
| 38 | -107 |
| 39 | 38 |
| 40 | 209 |
| 41 | 317 |
| 42 | 280 |
| 43 | 72 |
| 44 | -244 |
| 45 | -523 |
| 46 | -594 |
| 47 | -349 |
| 48 | 175 |
| 49 | 770 |
| 50 | 1120 |
| 51 | 946 |
| 52 | 177 |
| 53 | -942 |
| 54 | -1887 |
| 55 | -2063 |
| 56 | -1120 |
| 57 | 768 |