OFFSET
0,2
COMMENTS
Right border = A084057: (1, 1, 6, 16, 56, 176,...). Row sums = (1, 6, 16, 56,...) = INVERT transform of (1, 5, 5, 5,...). Sum of n-th row terms = rightmost term of next row.
EXAMPLE
First few rows of the triangle =
1;
5, 1;
5, 5, 6;
5, 5, 30, 16;
5, 5, 30, 80, 56;
5, 5, 30, 80, 280, 176;
5, 5, 30, 80, 280, 880, 1856;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Sep 06 2008
STATUS
approved