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 | 19 |
| 2 | 124 |
| 3 | 486 |
| 4 | 1421 |
| 5 | 3437 |
| 6 | 7280 |
| 7 | 13980 |
| 8 | 24897 |
| 9 | 41767 |
| 10 | 66748 |
| 11 | 102466 |
| 12 | 152061 |
| 13 | 219233 |
| 14 | 308288 |
| 15 | 424184 |
| 16 | 572577 |
| 17 | 759867 |
| 18 | 993244 |
| 19 | 1280734 |
| 20 | 1631245 |
| 21 | 2054613 |
| 22 | 2561648 |
| 23 | 3164180 |
| 24 | 3875105 |
| 25 | 4708431 |
| 26 | 5679324 |
| 27 | 6804154 |
| 28 | 8100541 |
| 29 | 9587401 |
| 30 | 11284992 |