Number of nX4 0..1 arrays with every element equal to 2, 3 or 4 king-move adjacent elements, with upper left element zero.

A297862

Number of nX4 0..1 arrays with every element equal to 2, 3 or 4 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =0a(1) =5a(2) =13a(3) =15a(4) =233a(5) =1052a(6) =5774a(7) =36119a(8) =204522a(9) =1203863a(10) =7063610a(11) =41315402a(12) =242353922a(13) =1420326554a(14) =8325054183a(15) =48802463232a(16) =286063056675

External references