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 | 3 |
| 3 | 7 |
| 4 | 13 |
| 5 | 23 |
| 6 | 35 |
| 7 | 53 |
| 8 | 75 |
| 9 | 103 |
| 10 | 135 |
| 11 | 177 |
| 12 | 223 |
| 13 | 281 |
| 14 | 345 |
| 15 | 417 |
| 16 | 497 |
| 17 | 593 |
| 18 | 695 |
| 19 | 815 |
| 20 | 943 |
| 21 | 1083 |
| 22 | 1233 |
| 23 | 1405 |
| 24 | 1585 |
| 25 | 1785 |
| 26 | 1997 |
| 27 | 2227 |
| 28 | 2469 |
| 29 | 2739 |
| 30 | 3017 |
| 31 | 3325 |
| 32 | 3649 |
| 33 | 3993 |
| 34 | 4353 |
| 35 | 4737 |
| 36 | 5133 |
| 37 | 5565 |
| 38 | 6015 |
| 39 | 6489 |
| 40 | 6979 |
| 41 | 7509 |
| 42 | 8051 |
| 43 | 8635 |
| 44 | 9239 |
| 45 | 9867 |
| 46 | 10517 |
| 47 | 11213 |
| 48 | 11925 |