OFFSET
1,2
COMMENTS
If there are several solutions with the minimal number of terms, choose the one with the greatest leading term, then the greatest second term, etc.
It can be shown that such a representation exists for all n.
EXAMPLE
1=1
2=2
3=3
4=3+1
5=5
6=5+1
7=7
8=5+3
9=7+2
10=7+3
11=11
12=7+5
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
N. J. A. Sloane, based on a posting by Henry Baker to the math-fun list, Jul 22 2006
STATUS
approved