OFFSET
1,9
COMMENTS
EXAMPLE
Let M(n) be the lower triangular matrix formed from the first 2^n rows.
To generate M(3) from M(2), obtain the matrix square of M(2):
[1,0,0,0]^2=[1,0,0,0]
[1,1,0,0]...[2,1,0,0]
[1,0,1,0]...[2,0,1,0]
[1,1,2,1]...[5,2,4,1],
then M(3) is formed by starting with M(2) and appending M(2) to the bottom left and M(2)^2 to the bottom right:
[1],
[1,1],
[1,0,1],
[1,1,2,1],
..........
[1,0,0,0],[1],
[1,1,0,0],[2,1],
[1,0,1,0],[2,0,1],
[1,1,2,1],[5,2,4,1].
Repeating this process converges to triangle A093662.
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Paul D. Hanna, Apr 08 2004
STATUS
approved