Number of (n+2) X 5 0..3 arrays with every 3 X 3 subblock commuting with each horizontal and vertical neighbor 3 X 3 subblock.

A186875

Number of (n+2) X 5 0..3 arrays with every 3 X 3 subblock commuting with each horizontal and vertical neighbor 3 X 3 subblock.

Terms

    a(0) =19236a(1) =1201a(2) =6712a(3) =20152a(4) =28984a(5) =32992a(6) =37576a(7) =46624a(8) =73744a(9) =138808a(10) =251563a(11) =430558a(12) =737137a(13) =1213933a(14) =1970809a(15) =3305629a(16) =5489365a(17) =9050326a(18) =15264856a(19) =25456522a(20) =42050491a(21) =70609627a(22) =117651379a(23) =194582923a(24) =326053558a(25) =543547039a(26) =900491803

External references