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 | 0 |
| 2 | -5 |
| 3 | -14 |
| 4 | -27 |
| 5 | -44 |
| 6 | -65 |
| 7 | -90 |
| 8 | -119 |
| 9 | -152 |
| 10 | -189 |
| 11 | -230 |
| 12 | -275 |
| 13 | -324 |
| 14 | -377 |
| 15 | -434 |
| 16 | -495 |
| 17 | -560 |
| 18 | -629 |
| 19 | -702 |
| 20 | -779 |
| 21 | -860 |
| 22 | -945 |
| 23 | -1034 |
| 24 | -1127 |
| 25 | -1224 |
| 26 | -1325 |
| 27 | -1430 |
| 28 | -1539 |
| 29 | -1652 |
| 30 | -1769 |
| 31 | -1890 |
| 32 | -2015 |
| 33 | -2144 |
| 34 | -2277 |
| 35 | -2414 |
| 36 | -2555 |
| 37 | -2700 |
| 38 | -2849 |
| 39 | -3002 |
| 40 | -3159 |
| 41 | -3320 |
| 42 | -3485 |
| 43 | -3654 |
| 44 | -3827 |
| 45 | -4004 |
| 46 | -4185 |
| 47 | -4370 |