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 | 32 |
| 1 | 48 |
| 2 | 80 |
| 3 | 144 |
| 4 | 272 |
| 5 | 528 |
| 6 | 1040 |
| 7 | 2064 |
| 8 | 4112 |
| 9 | 8208 |
| 10 | 16400 |
| 11 | 32784 |
| 12 | 65552 |
| 13 | 131088 |
| 14 | 262160 |
| 15 | 524304 |
| 16 | 1048592 |
| 17 | 2097168 |
| 18 | 4194320 |
| 19 | 8388624 |
| 20 | 16777232 |
| 21 | 33554448 |
| 22 | 67108880 |
| 23 | 134217744 |
| 24 | 268435472 |
| 25 | 536870928 |
| 26 | 1073741840 |
| 27 | 2147483664 |
| 28 | 4294967312 |
| 29 | 8589934608 |
| 30 | 17179869200 |