Number of (n+1) X (5+1) 0..2 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2 (constant-stress 1 X 1 tilings).
A234263
Number of (n+1) X (5+1) 0..2 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2 (constant-stress 1 X 1 tilings).
Terms
- a(0) =560a(1) =754a(2) =1100a(3) =1816a(4) =3188a(5) =6076a(6) =11876a(7) =24340a(8) =50180a(9) =107044a(10) =227780a(11) =500356a(12) =1090628a(13) =2457796a(14) =5468996a(15) =12611140a(16) =28568900a(17) =67202884a(18) =154536260a(19) =369513796a(20) =859910468a(21) =2082568516a(22) =4890632516a(23) =11957948740a(24) =28269265220a(25) =69599027524
External references
- oeis: A234263