OFFSET
0,3
COMMENTS
Number of factorizations of (n,n) into pairs (j,k) by prime signature.
Pairs (j,k) must satisfy j>1, k>=1; (a,b)*(x,y)=(a*x,b*y); unit is (1,1).
CROSSREFS
KEYWORD
nonn
AUTHOR
Christian G. Bower, Jun 03 2005
EXTENSIONS
More terms from David Wasserman, May 16 2008
STATUS
approved