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 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 4 |
| 6 | 8 |
| 7 | 16 |
| 8 | 32 |
| 9 | 64 |
| 10 | 128 |
| 11 | 256 |
| 12 | 511 |
| 13 | 1021 |
| 14 | 2041 |
| 15 | 4080 |
| 16 | 8156 |
| 17 | 16304 |
| 18 | 32592 |
| 19 | 65152 |
| 20 | 130240 |
| 21 | 260352 |
| 22 | 520448 |
| 23 | 1040384 |
| 24 | 2079746 |
| 25 | 4157449 |
| 26 | 8310814 |
| 27 | 16613464 |
| 28 | 33210608 |
| 29 | 66388592 |
| 30 | 132711968 |
| 31 | 265293568 |
| 32 | 530326528 |
| 33 | 1060132096 |
| 34 | 2119222786 |
| 35 | 4236363783 |
| 36 | 8468566033 |