OFFSET
1,3
LINKS
EXAMPLE
a(10) = 6 because 10 can be represented in 6 possible ways as a sum of integers in the set {1,2,3,4,6,7,9,11,15,...}: 9+1, 7+3, 7+2+1, 6+4, 6+3+1, 4+3+2+1.
CROSSREFS
KEYWORD
nonn
AUTHOR
Casey Mongoven, May 03 2014
STATUS
approved