Number of n X n arrays of squares of integers with every 3X3 subblock summing to 6.

A159206

Number of n X n arrays of squares of integers with every 3X3 subblock summing to 6.

Terms

    a(0) =336a(1) =2060a(2) =7528a(3) =19812a(4) =70576a(5) =197564a(6) =465096a(7) =1460108a(8) =3888976a(9) =9235668a(10) =27944512a(11) =75309548a(12) =188132376a(13) =564873500a(14) =1569781408a(15) =4155445092

External references