Number of (n+1)X4 0..1 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing.
A204957
Number of (n+1)X4 0..1 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing.
Terms
- a(0) =156a(1) =1436a(2) =12714a(3) =103106a(4) =807253a(5) =5988660a(6) =43018570a(7) =298869279a(8) =2027295942a(9) =13463590124a(10) =87975867196a(11) =567211697987
External references
- oeis: A204957