The spt function (smallest parts function) is a function in number theory that counts the sum of the number of smallest parts in each partition of a positive integer. It is related to the partition function. The first few values of spt(n) are: == Example == For example, there are five partitions of 4: (1,1,1,1), (1,1,2), (1,3), (2,2) and (4). Thes...