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 | 153 |
| 2 | 370 |
| 3 | 371 |
| 4 | 407 |
| 5 | 1000 |
| 6 | 1001 |
| 7 | 2213 |
| 8 | 4160 |
| 9 | 4161 |
| 10 | 41833 |
| 11 | 165033 |
| 12 | 221859 |
| 13 | 341067 |
| 14 | 444664 |
| 15 | 487215 |
| 16 | 982827 |
| 17 | 983221 |
| 18 | 166500333 |
| 19 | 296584415 |
| 20 | 710656413 |
| 21 | 828538472 |
| 22 | 3351425749 |
| 23 | 4741646560 |
| 24 | 5363441729 |
| 25 | 6410801727 |
| 26 | 13681182232 |
| 27 | 15812239860 |
| 28 | 16066842264 |
| 29 | 18722248929 |
| 30 | 67229383464 |