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 | 0 |
| 1 | -1 |
| 2 | 0 |
| 3 | 3 |
| 4 | 8 |
| 5 | 15 |
| 6 | 24 |
| 7 | 35 |
| 8 | 48 |
| 9 | 63 |
| 10 | 80 |
| 11 | 99 |
| 12 | 120 |
| 13 | 143 |
| 14 | 168 |
| 15 | 195 |
| 16 | 224 |
| 17 | 255 |
| 18 | 288 |
| 19 | 323 |
| 20 | 360 |
| 21 | 399 |
| 22 | 440 |
| 23 | 483 |
| 24 | 528 |
| 25 | 575 |
| 26 | 624 |
| 27 | 675 |
| 28 | 728 |
| 29 | 783 |
| 30 | 840 |
| 31 | 899 |
| 32 | 960 |
| 33 | 1023 |
| 34 | 1088 |
| 35 | 1155 |
| 36 | 1224 |
| 37 | 1295 |
| 38 | 1368 |
| 39 | 1443 |
| 40 | 1520 |
| 41 | 1599 |
| 42 | 1680 |
| 43 | 1763 |
| 44 | 1848 |
| 45 | 1935 |
| 46 | 2024 |
| 47 | 2115 |
| 48 | 2208 |
| 49 | 2303 |
| 50 | 2400 |
| 51 | 2499 |
| 52 | 2600 |
| 53 | 2703 |
| 54 | 2808 |
| 55 | 2915 |
| 56 | 3024 |
| 57 | 3135 |
| 58 | 3248 |
| 59 | 3363 |