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 | 8 |
| 1 | 512 |
| 2 | 32768 |
| 3 | 2097152 |
| 4 | 134217728 |
| 5 | 8589934592 |
| 6 | 549755813888 |
| 7 | 35184372088832 |
| 8 | 2251799813685248 |
| 9 | 144115188075855872 |
| 10 | 9223372036854775808 |
| 11 | 590295810358705651712 |
| 12 | 37778931862957161709568 |
| 13 | 2417851639229258349412352 |