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 | -32 |
| 2 | 123 |
| 3 | -304 |
| 4 | 605 |
| 5 | -1056 |
| 6 | 1687 |
| 7 | -2528 |
| 8 | 3609 |
| 9 | -4960 |
| 10 | 6611 |
| 11 | -8592 |
| 12 | 10933 |
| 13 | -13664 |
| 14 | 16815 |
| 15 | -20416 |
| 16 | 24497 |
| 17 | -29088 |
| 18 | 34219 |
| 19 | -39920 |
| 20 | 46221 |
| 21 | -53152 |
| 22 | 60743 |
| 23 | -69024 |
| 24 | 78025 |
| 25 | -87776 |
| 26 | 98307 |
| 27 | -109648 |
| 28 | 121829 |
| 29 | -134880 |
| 30 | 148831 |
| 31 | -163712 |
| 32 | 179553 |
| 33 | -196384 |
| 34 | 214235 |
| 35 | -233136 |
| 36 | 253117 |
| 37 | -274208 |
| 38 | 296439 |