use numberlab::figurate::pentagonal::{nth_pentagonal, pentagonal_sequence};
fn main() {
let sequence = pentagonal_sequence(10);
println!("{:?} == {}", sequence, sequence.iter().sum::<u128>());
let n_sequence: Vec<u128> = (1..=10).map(|n| nth_pentagonal(n)).collect();
println!("{:?} == {}", n_sequence, n_sequence.iter().sum::<u128>());
}