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 | 3 |
| 2 | 9 |
| 3 | 15 |
| 4 | 31 |
| 5 | 41 |
| 6 | 65 |
| 7 | 79 |
| 8 | 111 |
| 9 | 129 |
| 10 | 169 |
| 11 | 191 |
| 12 | 239 |
| 13 | 265 |
| 14 | 321 |
| 15 | 351 |
| 16 | 415 |
| 17 | 449 |
| 18 | 521 |
| 19 | 559 |
| 20 | 639 |
| 21 | 681 |
| 22 | 769 |
| 23 | 815 |
| 24 | 911 |
| 25 | 961 |
| 26 | 1065 |
| 27 | 1119 |
| 28 | 1231 |
| 29 | 1289 |
| 30 | 1409 |
| 31 | 1471 |
| 32 | 1599 |
| 33 | 1665 |
| 34 | 1801 |
| 35 | 1871 |
| 36 | 2015 |
| 37 | 2089 |
| 38 | 2241 |
| 39 | 2319 |
| 40 | 2479 |
| 41 | 2561 |
| 42 | 2729 |
| 43 | 2815 |
| 44 | 2991 |
| 45 | 3081 |
| 46 | 3265 |
| 47 | 3359 |
| 48 | 3551 |
| 49 | 3649 |
| 50 | 3849 |
| 51 | 3951 |
| 52 | 4159 |
| 53 | 4265 |
| 54 | 4481 |
| 55 | 4591 |
| 56 | 4815 |
| 57 | 4929 |
| 58 | 5161 |
| 59 | 5279 |
| 60 | 5519 |