using System.Collections.Generic;
using System.Numerics;

namespace Algorithms.Sequences
{
    /// <summary>
    ///     <para>
    ///         Sequence of cube numbers.
    ///     </para>
    ///     <para>
    ///         Wikipedia: https://en.wikipedia.org/wiki/Cube_(algebra).
    ///     </para>
    ///     <para>
    ///         OEIS: https://oeis.org/A000578.
    ///     </para>
    /// </summary>
    public class CubesSequence : ISequence
    {
        /// <summary>
        /// Gets sequence of cube numbers.
        /// </summary>
        public IEnumerable<BigInteger> Sequence
        {
            get
            {
                var n = BigInteger.Zero;

                while (true)
                {
                    yield return n * n * n;
                    n++;
                }
            }
        }
    }
}
