Number of (n+3)X6 0..3 arrays with every 4X4 subblock commuting with each horizontal and vertical neighbor 4X4 subblock.

A186593

Number of (n+3)X6 0..3 arrays with every 4X4 subblock commuting with each horizontal and vertical neighbor 4X4 subblock.

Terms

    a(0) =430183a(1) =8853a(2) =33006a(3) =407733a(4) =1398069a(5) =1824789a(6) =1889853a(7) =1922661a(8) =1956045a(9) =1993893a(10) =2122389a(11) =2663373a(12) =6952128a(13) =12534435a(14) =18583878a(15) =25969209a(16) =44698005a(17) =67421001a(18) =91930893a(19) =122071401a(20) =199108569a(21) =304875258a(22) =434150964a(23) =602474511

External references