Find a closed form of the generating function......................................................

Find a closed-form of the generating function x) for the sequence {on}, Where (In the equal to the number of partitions of 11 using only even numbers between 6 and 16, inclusively, and using exactly one or two odd numbers. For example, ifn = 24, some allowable partitions are 16 + 6 + 1 + 1, 8 + 6 + 6 + 3 + 1 and 23 + 1. Some nonallowed partitions are 18+2+1 +1, and 16+8. The "closed-font!\" means that you should express f as a sum/product offunetions (3'5: with no innite sums innoled. For example, using pieces like 1 / [1 x)