Number of (n+1) X 4 0..2 arrays with rows and columns of determinants of all 2 X 2 subblocks lexicographically nondecreasing.
A206218
Number of (n+1) X 4 0..2 arrays with rows and columns of determinants of all 2 X 2 subblocks lexicographically nondecreasing.
Terms
- a(0) =1970a(1) =73133a(2) =1782191a(3) =35625711a(4) =600064928a(5) =9098547899a(6) =131428029860
External references
- oeis: A206218