198918720

Appears in sequences

• Absolute value of determinant of n X n matrix whose entries are the integers from 1 to n^2 spiraling inward, starting in a corner.at n=7A023999
• a(n) = 7*(n+1)*binomial(n+5,7).at n=21A027812
• Determinant of the n X n matrix in which the entries are 1 through n^2, spiraling inward starting with 1 in the (1,1)-entry.at n=7A126224