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 | 2 |
| 2 | -1 |
| 3 | -6 |
| 4 | -13 |
| 5 | -24 |
| 6 | -37 |
| 7 | -54 |
| 8 | -73 |
| 9 | -96 |
| 10 | -125 |
| 11 | -156 |
| 12 | -193 |
| 13 | -234 |
| 14 | -277 |
| 15 | -324 |
| 16 | -377 |
| 17 | -436 |
| 18 | -497 |
| 19 | -564 |
| 20 | -635 |
| 21 | -708 |
| 22 | -787 |
| 23 | -870 |
| 24 | -959 |
| 25 | -1056 |
| 26 | -1157 |
| 27 | -1260 |
| 28 | -1367 |
| 29 | -1476 |
| 30 | -1589 |
| 31 | -1716 |
| 32 | -1847 |
| 33 | -1984 |
| 34 | -2123 |
| 35 | -2272 |
| 36 | -2423 |
| 37 | -2580 |
| 38 | -2743 |
| 39 | -2910 |