Absolute value of determinant of n X n matrix whose entries are the integers from 1 to n^2 spiraling outward, ending in a corner.

A079340

Absolute value of determinant of n X n matrix whose entries are the integers from 1 to n^2 spiraling outward, ending in a corner.

Terms

    a(0) =1a(1) =5a(2) =72a(3) =1380a(4) =31920a(5) =861840a(6) =26611200a(7) =925404480a(8) =35805369600

External references