OFFSET
1,1
EXAMPLE
13=1+4+8 so Partition(13) = [1,3,4], whose sub-sums are 0,1,3,4,5,7 and 13, with 4 twice (once from 1+3 and once from 4 by itself).
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Marc LeBrun, Jan 19 2001
STATUS
approved