Number of (n+1)X3 0..1 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing.
A204956
Number of (n+1)X3 0..1 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing.
Terms
- a(0) =51a(1) =277a(2) =1436a(3) =6921a(4) =32468a(5) =147434a(6) =659392a(7) =2907273a(8) =12720102a(9) =55312482a(10) =239664411a(11) =1035761616a(12) =4469289143a(13) =19264431459a(14) =82983495781a(15) =357308047528
External references
- oeis: A204956