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 | 1 |
| 2 | 11 |
| 3 | 121 |
| 4 | 1003 |
| 5 | 14641 |
| 6 | 100017 |
| 7 | 1771561 |
| 8 | 10000005 |
| 9 | 100020001 |
| 10 | 1000000016 |
| 11 | 25937424601 |
| 12 | 100000000004 |
| 13 | 3138428376721 |
| 14 | 10000000001344 |
| 15 | 100000720001296 |
| 16 | 1000000000000006 |
| 17 | 45949729863572161 |
| 18 | 100000000000000404 |