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A140223
Triangle: Row n contains (d(1),d(2),...,d(n)) in non-descending order, where d(n) = A000005(n).
2
1, 1, 2, 1, 2, 2, 1, 2, 2, 3, 1, 2, 2, 2, 3, 1, 2, 2, 2, 3, 4, 1, 2, 2, 2, 2, 3, 4, 1, 2, 2, 2, 2, 3, 4, 4, 1, 2, 2, 2, 2, 3, 3, 4, 4, 1, 2, 2, 2, 2, 3, 3, 4, 4, 4, 1, 2, 2, 2, 2, 2, 3, 3, 4, 4, 4, 1, 2, 2, 2, 2, 2, 3, 3, 4, 4, 4, 6, 1, 2, 2, 2, 2, 2, 2, 3, 3, 4, 4, 4, 6, 1, 2, 2, 2, 2, 2, 2, 3, 3, 4, 4, 4, 4, 6
OFFSET
1,3
EXAMPLE
The sequence of the numbers of divisors of the first 12 positive integers is: 1,2,2,3,2,4,2,4,3,4,2,6.
Rearranging these into a non-descending sequence gets row-12 of the triangle: 1,2,2,2,2,2,3,3,4,4,4,6.
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Leroy Quet, May 12 2008
EXTENSIONS
Extended by Ray Chandler, Jun 26 2009
STATUS
approved