OFFSET
1,2
EXAMPLE
(1) (2 8) (3 4 12) (5 7 10 14) (6 9 15 18 20)
CROSSREFS
KEYWORD
AUTHOR
Donald S. McDonald, Nov 10 2002
EXTENSIONS
It is not clear to me how one decides what numbers to place in the n-th row. Possibly the goal is to minimize the product of the terms in the n-th row? - N. J. A. Sloane, Nov 30 2002
STATUS
approved