OFFSET

3,6

COMMENTS

Row sums = A001590 starting (1, 2, 3, 6, 11, 20, 37,...).

Sum of n-th row terms = rightmost term of next row.

FORMULA

EXAMPLE

First few rows of the triangle =

1;

1, 1;

0, 1, 2;

1, 0, 2, 3;

1, 1, 0, 3, 6;

0, 1, 2, 0, 6, 11;

1, 0, 2, 3, 0, 11, 20;

1, 1, 0, 3, 6, 0, 20, 37;

0, 1, 2, 0, 6, 11, 0, 37, 68;

1, 0, 2, 3, 0, 11, 20, 0, 68, 125;

...

Row 7 = (1, 1, 0, 3, 6) = termwise products of (1, 1, 0, 1, 1) and (1, 1, 2, 3, 6).

CROSSREFS

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Oct 13 2008

EXTENSIONS

Alignment of example rows and unintentional concatenation of values fixed by Charles J. Daniels (chajadan(AT)gmail.com), Dec 05 2009

STATUS

approved