Absolute value of coefficient of term [x^(n-7)] in characteristic polynomial of maximum matrix A of size n X n, where n >= 7. Maximum matrix A(i,j) is MAX(i,j), where indices i and j run from 1 to n.

A112463

Absolute value of coefficient of term [x^(n-7)] in characteristic polynomial of maximum matrix A of size n X n, where n >= 7. Maximum matrix A(i,j) is MAX(i,j), where indices i and j run from 1 to n.

Terms

    a(0) =7a(1) =111a(2) =930a(3) =5480a(4) =25500a(5) =99756a(6) =341088a(7) =1046520a(8) =2936070a(9) =7638950a(10) =18631932a(11) =42969336a(12) =94348300a(13) =198354300a(14) =401166000a(15) =783610920a(16) =1483311285a(17) =2728813725a(18) =4891144350a(19) =8560278000a(20) =14656684680a(21) =24591569640a(22) =40493836800a(23) =65527390800a(24) =104329399500a(25) =163608855372

External references