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 | 1377595575 |
| 2 | 4275143301 |
| 3 | 13616091683 |
| 4 | 13640596128 |
| 5 | 15016388244 |
| 6 | 15176619135 |
| 7 | 21361749754 |
| 8 | 23605084359 |
| 9 | 24794290167 |
| 10 | 28025464183 |
| 11 | 29639590888 |
| 12 | 30739547718 |
| 13 | 33924433023 |
| 14 | 35259630279 |
| 15 | 38008366692 |
| 16 | 38670247670 |
| 17 | 38681191672 |
| 18 | 40210059079 |
| 19 | 40507412213 |
| 20 | 49759198333 |
| 21 | 52555068607 |