OFFSET
1,2
COMMENTS
No odd integer has any non-isolated divisors. The number of terms in the n-th row of the array is A132747(2n).
EXAMPLE
The positive divisors of 20 are 1,2,4,5,10,20. Of these, 1 and 2 are adjacent and 4 and 5 are adjacent. So the non-isolated divisors of 20 are 1,2,4,5.
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Leroy Quet, Sep 23 2007
EXTENSIONS
Extended by Ray Chandler, Jun 24 2008
STATUS
approved