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) |
|---|---|
| 0 | 1 |
| 1 | 4 |
| 2 | 6 |
| 3 | 0 |
| 4 | -11 |
| 5 | -8 |
| 6 | 18 |
| 7 | 32 |
| 8 | -10 |
| 9 | -72 |
| 10 | -42 |
| 11 | 96 |
| 12 | 153 |
| 13 | -40 |
| 14 | -288 |
| 15 | -160 |
| 16 | 344 |
| 17 | 524 |
| 18 | -146 |
| 19 | -944 |
| 20 | -501 |
| 21 | 1080 |
| 22 | 1602 |
| 23 | -416 |
| 24 | -2727 |
| 25 | -1436 |
| 26 | 2970 |
| 27 | 4336 |
| 28 | -1131 |
| 29 | -7176 |
| 30 | -3694 |
| 31 | 7616 |
| 32 | 10942 |
| 33 | -2776 |
| 34 | -17562 |
| 35 | -8960 |
| 36 | 18136 |
| 37 | 25784 |
| 38 | -6528 |
| 39 | -40608 |
| 40 | -20472 |
| 41 | 41176 |
| 42 | 57974 |
| 43 | -14464 |