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 | -15 |
| 2 | 97 |
| 3 | -350 |
| 4 | 770 |
| 5 | -1133 |
| 6 | 1540 |
| 7 | -2731 |
| 8 | 4230 |
| 9 | -3960 |
| 10 | 3402 |
| 11 | -6580 |
| 12 | 9167 |
| 13 | -5390 |
| 14 | 4310 |
| 15 | -11061 |
| 16 | 12320 |
| 17 | -5306 |
| 18 | 2030 |
| 19 | -7530 |
| 20 | 14784 |
| 21 | -4340 |
| 22 | -10119 |
| 23 | -9240 |
| 24 | 20090 |
| 25 | 11438 |
| 26 | -17275 |
| 27 | -4928 |
| 28 | 2270 |
| 29 | 14080 |
| 30 | -26840 |
| 31 | 7700 |
| 32 | 16646 |
| 33 | 24640 |
| 34 | -53760 |
| 35 | 7449 |
| 36 | 10780 |
| 37 | 46200 |
| 38 | -61600 |