OFFSET
0,3
LINKS
EXAMPLE
a(2) = 4:
[2, 0;
1, 2]
a(3) = 74:
[4, 0, 2;
3, 4, 0;
1, 3, 4]
CROSSREFS
KEYWORD
nonn,hard,more
AUTHOR
Stefano Spezia, Nov 22 2022
EXTENSIONS
a(5)-a(7) from Lucas A. Brown, Dec 03 2022
STATUS
approved