Number of (n+2)X(3+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 2 and no column sum 2.
A255223
Number of (n+2)X(3+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 2 and no column sum 2.
Terms
- a(0) =31a(1) =37a(2) =46a(3) =58a(4) =76a(5) =103a(6) =142a(7) =199a(8) =283a(9) =406a(10) =586a(11) =850a(12) =1237a(13) =1804a(14) =2635a(15) =3853a(16) =5638a(17) =8254a(18) =12088a(19) =17707a(20) =25942a(21) =38011a(22) =55699a(23) =81622a(24) =119614a(25) =175294a(26) =256897a(27) =376492a(28) =551767a(29) =808645
External references
- oeis: A255223