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 | 287 |
| 2 | 532 |
| 3 | 17145051 |
| 4 | 32963672 |
| 5 | 1106094475927 |
| 6 | 2126616990876 |
| 7 | 71358579001465427 |
| 8 | 137196568515066592 |
| 9 | 4603627364594444737551 |
| 10 | 8851099419054387781412 |
| 11 | 296998415728087428795555787 |
| 12 | 571019827783678204813603176 |
| 13 | 19160555787678205016722039960967 |