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 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 2 |
| 5 | 1 |
| 6 | -1 |
| 7 | -4 |
| 8 | -7 |
| 9 | -10 |
| 10 | -14 |
| 11 | -18 |
| 12 | -21 |
| 13 | -23 |
| 14 | -26 |
| 15 | -27 |
| 16 | -29 |
| 17 | -33 |
| 18 | -38 |
| 19 | -44 |
| 20 | -50 |
| 21 | -56 |
| 22 | -61 |
| 23 | -67 |
| 24 | -74 |
| 25 | -81 |
| 26 | -87 |
| 27 | -94 |
| 28 | -101 |
| 29 | -107 |
| 30 | -115 |
| 31 | -123 |
| 32 | -131 |
| 33 | -137 |
| 34 | -140 |
| 35 | -145 |
| 36 | -149 |
| 37 | -149 |
| 38 | -148 |
| 39 | -146 |
| 40 | -141 |
| 41 | -138 |
| 42 | -134 |
| 43 | -127 |
| 44 | -119 |
| 45 | -109 |
| 46 | -99 |
| 47 | -90 |
| 48 | -80 |