Number of (n+1) X (5+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).
A234879
Number of (n+1) X (5+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).
Terms
- a(0) =512a(1) =1188a(2) =2096a(3) =6364a(4) =12208a(5) =44348a(6) =87312a(7) =354132a(8) =703104a(9) =3038716a(10) =6051952a(11) =27075444a(12) =53993296a(13) =245985516a(14) =490821440a(15) =2257240564a(16) =4505154032a(17) =20819580220a(18) =41558674736a(19) =192537441668a(20) =384356619712
External references
- oeis: A234879