A016160 Duplicate of A005062.
0, 1, 11, 91, 671, 4651, 31031, 201811, 1288991, 8124571, 50700551
Offset: 0
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.