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 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 6 |
| 5 | 5 |
| 6 | 1 |
| 7 | -7 |
| 8 | -20 |
| 9 | -39 |
| 10 | -65 |
| 11 | -99 |
| 12 | -142 |
| 13 | -195 |
| 14 | -259 |
| 15 | -335 |
| 16 | -424 |
| 17 | -527 |
| 18 | -645 |
| 19 | -779 |
| 20 | -930 |
| 21 | -1099 |
| 22 | -1287 |
| 23 | -1495 |
| 24 | -1724 |
| 25 | -1975 |
| 26 | -2249 |
| 27 | -2547 |
| 28 | -2870 |
| 29 | -3219 |
| 30 | -3595 |
| 31 | -3999 |
| 32 | -4432 |
| 33 | -4895 |
| 34 | -5389 |
| 35 | -5915 |
| 36 | -6474 |
| 37 | -7067 |
| 38 | -7695 |
| 39 | -8359 |
| 40 | -9060 |
| 41 | -9799 |
| 42 | -10577 |
| 43 | -11395 |
| 44 | -12254 |
| 45 | -13155 |
| 46 | -14099 |
| 47 | -15087 |
| 48 | -16120 |