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 | 0 |
| 2 | 1 |
| 3 | 15 |
| 4 | 16 |
| 5 | 65 |
| 6 | 80 |
| 7 | 81 |
| 8 | 175 |
| 9 | 240 |
| 10 | 255 |
| 11 | 256 |
| 12 | 369 |
| 13 | 544 |
| 14 | 609 |
| 15 | 624 |
| 16 | 625 |
| 17 | 671 |
| 18 | 1040 |
| 19 | 1105 |
| 20 | 1215 |
| 21 | 1280 |
| 22 | 1295 |
| 23 | 1296 |
| 24 | 1695 |
| 25 | 1776 |
| 26 | 2145 |
| 27 | 2320 |
| 28 | 2385 |
| 29 | 2400 |
| 30 | 2401 |
| 31 | 2465 |
| 32 | 2800 |
| 33 | 3439 |
| 34 | 3471 |
| 35 | 3840 |
| 36 | 4015 |
| 37 | 4080 |
| 38 | 4095 |
| 39 | 4096 |
| 40 | 4160 |
| 41 | 4641 |
| 42 | 5265 |
| 43 | 5904 |
| 44 | 5936 |
| 45 | 6095 |
| 46 | 6305 |
| 47 | 6480 |