81392
domain: N
Appears in sequences
- Numbers whose base-5 representation has exactly 8 runs.at n=10A043608
- Number of polyhexes with n cells that tile the plane by translation or by 180-degree rotation (Conway criterion).at n=11A075212
- Number of idempotent 3 X 3 -n..n matrices.at n=15A223455
- Number of (n+5) X 10 0..1 matrices with each 6 X 6 subblock idempotent.at n=16A224574