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 | 16 |
| 2 | 54 |
| 3 | 250 |
| 4 | 686 |
| 5 | 2662 |
| 6 | 4394 |
| 7 | 9826 |
| 8 | 13718 |
| 9 | 24334 |
| 10 | 48778 |
| 11 | 59582 |
| 12 | 101306 |
| 13 | 137842 |
| 14 | 159014 |
| 15 | 207646 |
| 16 | 297754 |
| 17 | 410758 |
| 18 | 453962 |
| 19 | 601526 |
| 20 | 715822 |
| 21 | 778034 |
| 22 | 986078 |
| 23 | 1143574 |
| 24 | 1409938 |
| 25 | 1825346 |
| 26 | 2060602 |
| 27 | 2185454 |
| 28 | 2450086 |
| 29 | 2590058 |
| 30 | 2885794 |
| 31 | 4096766 |