OFFSET
1,3
COMMENTS
A persymmetric (or Hankel) matrix has M[ i,j ] = M[ i-k,j+k ] for all i and j (matrix is constant along antidiagonals).
Interpretation: largest m such that for each d for which 0 <= d <= m a matrix with determinant d exists. - Bert Dobbelaere, Jan 26 2019
CROSSREFS
KEYWORD
nonn
AUTHOR
EXTENSIONS
a(7)-a(12) from Bert Dobbelaere, Jan 26 2019
STATUS
approved