Number of (n+1) X 3 0..2 arrays with every 2 X 3 or 3 X 2 subblock having exactly one clockwise edge increases.

A207044

Number of (n+1) X 3 0..2 arrays with every 2 X 3 or 3 X 2 subblock having exactly one clockwise edge increases.

Terms

    a(0) =150a(1) =270a(2) =552a(3) =1182a(4) =2244a(5) =4722a(6) =9582a(7) =18930a(8) =39348a(9) =78804a(10) =159042a(11) =325836a(12) =653826a(13) =1328730a(14) =2698986a(15) =5441712a(16) =11061960a(17) =22395798a(18) =45304764a(19) =91960698a(20) =186084846a(21) =376987458a(22) =764272620a(23) =1547133684a(24) =3135436986a(25) =6352558164a(26) =12865282314

External references