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 | 4 |
| 2 | 12 |
| 3 | 25 |
| 4 | 44 |
| 5 | 67 |
| 6 | 96 |
| 7 | 130 |
| 8 | 170 |
| 9 | 214 |
| 10 | 264 |
| 11 | 319 |
| 12 | 380 |
| 13 | 445 |
| 14 | 516 |
| 15 | 592 |
| 16 | 674 |
| 17 | 760 |
| 18 | 852 |
| 19 | 949 |
| 20 | 1052 |
| 21 | 1159 |
| 22 | 1272 |
| 23 | 1390 |
| 24 | 1514 |
| 25 | 1642 |
| 26 | 1776 |
| 27 | 1915 |
| 28 | 2060 |
| 29 | 2209 |
| 30 | 2364 |
| 31 | 2524 |
| 32 | 2690 |
| 33 | 2860 |
| 34 | 3036 |
| 35 | 3217 |
| 36 | 3404 |
| 37 | 3595 |
| 38 | 3792 |
| 39 | 3994 |
| 40 | 4202 |
| 41 | 4414 |
| 42 | 4632 |
| 43 | 4855 |
| 44 | 5084 |
| 45 | 5317 |
| 46 | 5556 |
| 47 | 5800 |