Hi all,

Can anybody help me with the following?



How many ways can the numbers 1 to 15 be added together to make
15?



Is there a formula for that calculation?



Hint: The number of partitions p(n) is the coefficient of xn in
the expansion of

(1+x+x2+x3+...) (1+x2+x4+x6+...) (1+x3+x6+...) (1+x4+x8+...)
(...) ...



But I don't know how to take it up further? Guys help please.
Any short cuts for this?



Thanks & Regards,

Rupesh