Number of (n+1) X 2 0..3 arrays with every 2 X 2 subblock singular.
A184765
Number of (n+1) X 2 0..3 arrays with every 2 X 2 subblock singular.
Terms
- a(0) =64a(1) =424a(2) =2248a(3) =13096a(4) =73288a(5) =417256a(6) =2358280a(7) =13370536a(8) =75704776a(9) =428889448a(10) =2429192584a(11) =13760163880a(12) =77941013320a(13) =441485755624
External references
- oeis: A184765