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 | 1 |
| 2 | 19 |
| 3 | 121 |
| 4 | 439 |
| 5 | 1171 |
| 6 | 2581 |
| 7 | 4999 |
| 8 | 8821 |
| 9 | 14509 |
| 10 | 22591 |
| 11 | 33661 |
| 12 | 48379 |
| 13 | 67471 |
| 14 | 91729 |
| 15 | 122011 |
| 16 | 159241 |
| 17 | 204409 |
| 18 | 258571 |
| 19 | 322849 |
| 20 | 398431 |
| 21 | 486571 |
| 22 | 588589 |
| 23 | 705871 |
| 24 | 839869 |
| 25 | 992101 |
| 26 | 1164151 |
| 27 | 1357669 |
| 28 | 1574371 |
| 29 | 1816039 |
| 30 | 2084521 |
| 31 | 2381731 |
| 32 | 2709649 |