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 | 2 |
| 3 | 4 |
| 4 | 8 |
| 5 | 16 |
| 6 | 32 |
| 7 | 64 |
| 8 | 128 |
| 9 | 256 |
| 10 | 512 |
| 11 | 1024 |
| 12 | 2048 |
| 13 | 4096 |
| 14 | 8192 |
| 15 | 8193 |
| 16 | 4097 |
| 17 | 8194 |
| 18 | 8195 |
| 19 | 2049 |
| 20 | 4098 |
| 21 | 8196 |
| 22 | 8197 |
| 23 | 4099 |
| 24 | 8198 |
| 25 | 8199 |
| 26 | 1025 |
| 27 | 2050 |
| 28 | 4100 |
| 29 | 8200 |
| 30 | 8201 |
| 31 | 4101 |
| 32 | 8202 |
| 33 | 8203 |
| 34 | 2051 |
| 35 | 4102 |
| 36 | 8204 |
| 37 | 8205 |
| 38 | 4103 |
| 39 | 8206 |
| 40 | 8207 |
| 41 | 513 |
| 42 | 1026 |
| 43 | 2052 |
| 44 | 4104 |
| 45 | 8208 |
| 46 | 8209 |
| 47 | 4105 |