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A143969
Eigentriangle by rows, n terms of (5 * A084057) followed by A084057(n).
1
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, 5, 5, 30, 80, 280, 880, 9280, 6016, 5, 5, 30, 80, 280, 880, 9280, 30080, 19456
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.
FORMULA
Eigentriangle by rows, n terms of (5 * A084057) followed by A084057(n).
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