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 | -26 |
| 1 | -25 |
| 2 | -23 |
| 3 | -19 |
| 4 | -11 |
| 5 | 5 |
| 6 | 37 |
| 7 | 101 |
| 8 | 229 |
| 9 | 485 |
| 10 | 997 |
| 11 | 2021 |
| 12 | 4069 |
| 13 | 8165 |
| 14 | 16357 |
| 15 | 32741 |
| 16 | 65509 |
| 17 | 131045 |
| 18 | 262117 |
| 19 | 524261 |
| 20 | 1048549 |
| 21 | 2097125 |
| 22 | 4194277 |
| 23 | 8388581 |
| 24 | 16777189 |
| 25 | 33554405 |
| 26 | 67108837 |
| 27 | 134217701 |
| 28 | 268435429 |
| 29 | 536870885 |
| 30 | 1073741797 |
| 31 | 2147483621 |
| 32 | 4294967269 |