Function nibonacci::nibonacci

pub fn nibonacci<T, U>(signature: U, n_elem: usize) -> Vec<T> where
    T: Num + Copy,
    U: IntoIterator,
    U::Item: Deref<Target = T>, 

Returns the first n_elem elements from a sequence which sums the last L elements to produce the next element where L is the length of the given signature. The signature elements are the first elements yielded.