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 | 1 |
| 1 | -11 |
| 2 | 56 |
| 3 | -175 |
| 4 | 376 |
| 5 | -592 |
| 6 | 719 |
| 7 | -722 |
| 8 | 678 |
| 9 | -696 |
| 10 | 815 |
| 11 | -988 |
| 12 | 1143 |
| 13 | -1254 |
| 14 | 1374 |
| 15 | -1602 |
| 16 | 1986 |
| 17 | -2440 |
| 18 | 2794 |
| 19 | -2971 |
| 20 | 3095 |
| 21 | -3378 |
| 22 | 3906 |
| 23 | -4562 |
| 24 | 5147 |
| 25 | -5568 |
| 26 | 5937 |
| 27 | -6487 |
| 28 | 7336 |
| 29 | -8317 |
| 30 | 9111 |
| 31 | -9601 |
| 32 | 10048 |
| 33 | -10852 |
| 34 | 12146 |
| 35 | -13656 |
| 36 | 14954 |
| 37 | -15853 |
| 38 | 16601 |
| 39 | -17692 |
| 40 | 19402 |
| 41 | -21465 |
| 42 | 23298 |
| 43 | -24631 |
| 44 | 25843 |
| 45 | -27577 |