OFFSET
0,3
EXAMPLE
The a(2) = 3 matrices are:
[2 2 0 0] [2 1 1 0] [1 1 1 1]
[0 0 2 2] [0 1 1 2] [1 1 1 1]
CROSSREFS
KEYWORD
nonn
AUTHOR
Andrew Howroyd, Oct 14 2024
STATUS
approved