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 | 10946 |
| 1 | 6765 |
| 2 | 610 |
| 3 | 6765 |
| 4 | 12586269025 |
| 5 | 14472334024676221 |
| 6 | 1836311903 |
| 7 | 63245986 |
| 8 | 17167680177565 |
| 9 | 86267571272 |
| 10 | 365435296162 |
| 11 | 10610209857723 |
| 12 | 6557470319842 |
| 13 | 2880067194370816120 |
| 14 | 259695496911122585 |
| 15 | 6356306993006846248183 |