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 | -1 |
| 2 | -3 |
| 3 | -6 |
| 4 | 2 |
| 5 | 9 |
| 6 | 41 |
| 7 | 46 |
| 8 | 91 |
| 9 | -110 |
| 10 | -210 |
| 11 | -713 |
| 12 | -574 |
| 13 | -1152 |
| 14 | 792 |
| 15 | 1066 |
| 16 | 9317 |
| 17 | 8553 |
| 18 | 21302 |
| 19 | 745 |
| 20 | 8051 |
| 21 | -82940 |
| 22 | -76750 |
| 23 | -276022 |
| 24 | -82369 |
| 25 | -404100 |
| 26 | 381095 |
| 27 | -38110 |
| 28 | 2427272 |
| 29 | 1126260 |
| 30 | 6527840 |
| 31 | 198507 |
| 32 | 9754305 |
| 33 | -14320206 |
| 34 | 2879362 |
| 35 | -60271740 |
| 36 | -5154261 |
| 37 | -143468194 |