T(n,k) = Number of (n+3) X (k+3) 0..3 arrays with every 4 X 4 subblock commuting with each horizontal and vertical neighbor 4 X 4 subblock.
A186599
T(n,k) = Number of (n+3) X (k+3) 0..3 arrays with every 4 X 4 subblock commuting with each horizontal and vertical neighbor 4 X 4 subblock.
Terms
- a(0) =4294967296a(1) =48243a(2) =48243a(3) =430183a(4) =2703a(5) =430183a(6) =3306753a(7) =8853a(8) =8853a(9) =3306753a(10) =21993587a(11) =104547a(12) =33006a(13) =104547a(14) =21993587a(15) =53301263a(16) =444066a(17) =407733a(18) =407733a(19) =444066a(20) =53301263a(21) =71095231a(22) =884466a(23) =1398069a(24) =2526165a(25) =1398069a(26) =884466a(27) =71095231
External references
- oeis: A186599