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 | 2 |
| 2 | 3 |
| 3 | 11 |
| 4 | 251 |
| 5 | 5051 |
| 6 | 16811 |
| 7 | 2025251 |
| 8 | 8751251 |
| 9 | 16607051 |
| 10 | 28257611 |
| 11 | 69005051 |
| 12 | 78906251 |
| 13 | 176775251 |
| 14 | 210381251 |
| 15 | 372175451 |
| 16 | 550427051 |
| 17 | 707025251 |
| 18 | 854704451 |
| 19 | 1866788051 |
| 20 | 2441406251 |
| 21 | 2605806251 |
| 22 | 4249701251 |
| 23 | 5469531251 |
| 24 | 9304386251 |
| 25 | 10315761251 |
| 26 | 10915095251 |