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 | 40 |
| 3 | 43 |
| 4 | 47 |
| 5 | 50 |
| 6 | 53 |
| 7 | 2636 |
| 8 | 2639 |
| 9 | 2640 |
| 10 | 2643 |
| 11 | 2644 |
| 12 | 2730 |
| 13 | 2739 |
| 14 | 3008 |
| 15 | 251505 |
| 16 | 251995 |
| 17 | 252485 |
| 18 | 252975 |
| 19 | 253465 |
| 20 | 253506 |
| 21 | 253510 |
| 22 | 253513 |
| 23 | 253514 |
| 24 | 253515 |
| 25 | 253516 |
| 26 | 253517 |
| 27 | 253520 |
| 28 | 253521 |
| 29 | 253522 |
| 30 | 255008 |
| 31 | 25037505 |
| 32 | 25087495 |
| 33 | 25137485 |
| 34 | 25187475 |