Triangle read by rows: row n gives y transposed, where y is the solution to the matrix equation M*y=b, where the matrix M and vector b are defined by M(i,j) = ((3^(i+1) + 1)^(j-1) + 2)/3 and b(i) = ((3^(i+1)+1)^n + 2)/3 for 1 <= i,j <= n.

A365450

Triangle read by rows: row n gives y transposed, where y is the solution to the matrix equation M*y=b, where the matrix M and vector b are defined by M(i,j) = ((3^(i+1) + 1)^(j-1) + 2)/3 and b(i) = ((3^(i+1)+1)^n + 2)/3 for 1 <= i,j <= n.

Terms

    a(0) =4a(1) =-118a(2) =38a(3) =9838a(4) =-3396a(5) =120a(6) =-2413594a(7) =851584a(8) =-32676a(9) =364a(10) =1765112266a(11) =-627258560a(12) =24705064a(13) =-298396a(14) =1094a(17) =-54681938592a(18) =677595512a(19) =-2692068a(20) =3282a(25) =18342945728a(26) =-24228552a(27) =9844

External references