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 | 127 |
| 5 | 128 |
| 6 | 129 |
| 7 | 256 |
| 8 | 2059 |
| 9 | 2186 |
| 10 | 2187 |
| 11 | 2188 |
| 12 | 2315 |
| 13 | 4374 |
| 14 | 14197 |
| 15 | 16256 |
| 16 | 16383 |
| 17 | 16384 |
| 18 | 16385 |
| 19 | 16512 |
| 20 | 18571 |
| 21 | 32768 |
| 22 | 61741 |
| 23 | 75938 |
| 24 | 77997 |
| 25 | 78124 |
| 26 | 78125 |
| 27 | 78126 |
| 28 | 78253 |
| 29 | 80312 |
| 30 | 94509 |
| 31 | 156250 |
| 32 | 201811 |
| 33 | 263552 |
| 34 | 277749 |
| 35 | 279808 |
| 36 | 279935 |
| 37 | 279936 |
| 38 | 279937 |
| 39 | 280064 |
| 40 | 282123 |
| 41 | 296320 |