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 | 113 |
| 2 | 3728 |
| 3 | 103528 |
| 4 | 2604826 |
| 5 | 61846403 |
| 6 | 1408572430 |
| 7 | 31197299012 |
| 8 | 676213941385 |
| 9 | 14409889137860 |
| 10 | 302739147144202 |
| 11 | 6285532293756352 |
| 12 | 129206691796171679 |
| 13 | 2633609665501923727 |
| 14 | 53291436966934467972 |
| 15 | 1071555955172980827276 |