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 | 7 |
| 2 | 127 |
| 3 | 2147483647 |
| 4 | 170141183460469231731687303715884105727 |
| 5 | 47 |
| 6 | 338193759479 |
| 7 | 231733529 |
| 8 | 62914441 |
| 9 | 2351 |
| 10 | 1399 |
| 11 | 295257526626031 |
| 12 | 18287 |
| 13 | 106937 |
| 14 | 863 |
| 15 | 4703 |
| 16 | 138863 |
| 17 | 22590223644617 |