Number of n X 3 0..3 arrays of the sum of the corresponding element, the element to the east and the element to the south in a larger (n+1) X 4 0..1 array.

A229387

Number of n X 3 0..3 arrays of the sum of the corresponding element, the element to the east and the element to the south in a larger (n+1) X 4 0..1 array.

Terms

    a(0) =48a(1) =1064a(2) =19124a(3) =319340a(4) =5212236a(5) =84210828a(6) =1353901580a(7) =21715025932a(8) =347864379404

External references