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 | 7045248121 |
| 2 | 7279379941 |
| 3 | 24306384961 |
| 4 | 43234580143 |
| 5 | 52437986833 |
| 6 | 60518537641 |
| 7 | 80829302401 |
| 8 | 118805562613 |
| 9 | 144377609419 |
| 10 | 165321688501 |
| 11 | 167385219121 |
| 12 | 254302215553 |
| 13 | 364573433665 |
| 14 | 575687567521 |
| 15 | 588909469501 |
| 16 | 652270080001 |
| 17 | 2152302898747 |
| 18 | 4094040693601 |
| 19 | 6287912246305 |