OFFSET
1,4
FORMULA
T(n,n)=0. (k=n would require a 1 on the diagonal)
T(n,n-1)=1. (1 at all entries but the diagonal)
T(n,n-k) = T(n,k-1). (Flip entries 0<->1 and erase diagonal) - R. J. Mathar, Jul 26 2023
EXAMPLE
0
1 0
2 1 0
9 9 1 0
44 216 44 1 0
265 7570 7570 265 1 0
1854 357435 1975560 357435 1854 1 0
14833 22040361 749649145
CROSSREFS
KEYWORD
AUTHOR
R. J. Mathar, Jul 04 2023
STATUS
approved