Number of (n+1)X7 0..1 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing, and all 2X2 permanents nonzero.
A204738
Number of (n+1)X7 0..1 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing, and all 2X2 permanents nonzero.
Terms
- a(0) =255a(1) =2033a(2) =15327a(3) =113694a(4) =825967a(5) =5920734a(6) =41716355a(7) =290523224a(8) =1996020063a(9) =13589404983a(10) =91685776711a(11) =614974697425
External references
- oeis: A204738