Number of (n+2) X (1+2) 0..1 arrays with no 3 x 3 subblock diagonal sum equal to the antidiagonal sum.
A258674
Number of (n+2) X (1+2) 0..1 arrays with no 3 x 3 subblock diagonal sum equal to the antidiagonal sum.
Terms
- a(0) =320a(1) =1600a(2) =8320a(3) =43264a(4) =219648a(5) =1115136a(6) =5744640a(7) =29593600a(8) =151101440a(9) =771506176a(10) =3960635392a(11) =20332478464a(12) =104035123200a(13) =532316160000
External references
- oeis: A258674