OFFSET
3,3
FORMULA
EXAMPLE
a(15)=20 because there are 20 partitions of 15 into a prime number of distinct parts: 1+2+3+4+5=4+5+6=3+5+7=2+6+7=3+4+8=2+5+8=1+6+8=7+8=2+4+9=1+5+9=6+9=2+3+10=
1+4+10=5+10=1+3+11=4+11=1+2+12=3+12=2+13=1+14.
CROSSREFS
KEYWORD
nonn
AUTHOR
Vladeta Jovovic, Jul 21 2003
STATUS
approved