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 | 10 |
| 2 | 76 |
| 3 | 700 |
| 4 | 8296 |
| 5 | 104968 |
| 6 | 1399176 |
| 7 | 19175140 |
| 8 | 268447816 |
| 9 | 3817763740 |
| 10 | 54975738736 |
| 11 | 799645010860 |
| 12 | 11728126132976 |
| 13 | 173215372864600 |
| 14 | 2573485530115576 |
| 15 | 38430716856090160 |
| 16 | 576460752706084936 |
| 17 | 8680820741074491040 |
| 18 | 131176846752106589576 |
| 19 | 1988364834899715824380 |