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 | 37 |
| 2 | 43 |
| 3 | 67 |
| 4 | 163 |
| 5 | 547 |
| 6 | 2083 |
| 7 | 32803 |
| 8 | 33554467 |
| 9 | 8589934627 |
| 10 | 144115188075855907 |
| 11 | 166153499473114484112975882535043107 |
| 12 | 10889035741470030830827987437816582766627 |
| 13 | 784637716923335095479473677900958302012794430558004314147 |