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 | 7 |
| 3 | 18 |
| 4 | 28 |
| 5 | 25 |
| 6 | -9 |
| 7 | -98 |
| 8 | -272 |
| 9 | -567 |
| 10 | -1025 |
| 11 | -1694 |
| 12 | -2628 |
| 13 | -3887 |
| 14 | -5537 |
| 15 | -7650 |
| 16 | -10304 |
| 17 | -13583 |
| 18 | -17577 |
| 19 | -22382 |
| 20 | -28100 |
| 21 | -34839 |
| 22 | -42713 |
| 23 | -51842 |
| 24 | -62352 |
| 25 | -74375 |
| 26 | -88049 |
| 27 | -103518 |
| 28 | -120932 |
| 29 | -140447 |
| 30 | -162225 |
| 31 | -186434 |
| 32 | -213248 |
| 33 | -242847 |
| 34 | -275417 |