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 | 193 |
| 2 | 1459 |
| 3 | 14557 |
| 4 | 152617 |
| 5 | 2120879 |
| 6 | 7654109 |
| 7 | 24527681 |
| 8 | 2342959 |
| 9 | 90603883 |
| 10 | 1657641497 |
| 11 | 40373093 |
| 12 | 2175429661 |
| 13 | 1614357949 |
| 14 | 119612113 |
| 15 | 14635471219 |
| 16 | 2816276179 |
| 17 | 15591204869 |
| 18 | 1006953931 |
| 19 | 7726467079 |
| 20 | 48931161299 |
| 21 | 54908441659 |
| 22 | 41985419521 |
| 23 | 583493688221 |
| 24 | 200335697059 |
| 25 | 96891225583 |
| 26 | 50303508131 |
| 27 | 129847013561 |
| 28 | 362253784469 |
| 29 | 625810253147 |
| 30 | 195406393583 |