Number of (n+1)X5 0..3 arrays with the determinants of 2X2 subblocks nondecreasing rightwards and downwards.
A205023
Number of (n+1)X5 0..3 arrays with the determinants of 2X2 subblocks nondecreasing rightwards and downwards.
Terms
- a(0) =84899a(1) =3684581a(2) =198539736a(3) =11646996582a(4) =674941613200
External references
- oeis: A205023