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) |
|---|---|
| 0 | 7 |
| 1 | 13 |
| 2 | 7 |
| 3 | -11 |
| 4 | -41 |
| 5 | -83 |
| 6 | -137 |
| 7 | -203 |
| 8 | -281 |
| 9 | -371 |
| 10 | -473 |
| 11 | -587 |
| 12 | -713 |
| 13 | -851 |
| 14 | -1001 |
| 15 | -1163 |
| 16 | -1337 |
| 17 | -1523 |
| 18 | -1721 |
| 19 | -1931 |
| 20 | -2153 |
| 21 | -2387 |
| 22 | -2633 |
| 23 | -2891 |
| 24 | -3161 |
| 25 | -3443 |
| 26 | -3737 |
| 27 | -4043 |
| 28 | -4361 |
| 29 | -4691 |
| 30 | -5033 |
| 31 | -5387 |
| 32 | -5753 |
| 33 | -6131 |
| 34 | -6521 |
| 35 | -6923 |
| 36 | -7337 |
| 37 | -7763 |
| 38 | -8201 |
| 39 | -8651 |