using Asakatsu20200503.Questions;
using Asakatsu20200503.Extensions;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;

namespace Asakatsu20200503.Questions
{
    /// <summary>
    /// ARC098 D
    /// </summary>
    public class QuestionE : AtCoderQuestionBase
    {
        public override IEnumerable<object> Solve(TextReader inputStream)
        {
            var n = inputStream.ReadInt();
            var a = inputStream.ReadIntArray();

            var r = 0;
            var xor = 0;

            long count = 0;
            for (int l = 0; l < a.Length; l++)
            {
                while (r < a.Length && (xor & a[r]) == 0)
                {
                    xor ^= a[r++];
                }
                count += r - l;
                xor ^= a[l];
            }
            yield return count;
        }

        private static void DecrementCounter(int[] a, int r, int[] counter)
        {
            for (int digit = 0; digit < 20; digit++)
            {
                counter[digit] -= (a[r] & (1 << digit)) > 0 ? 1 : 0;
            }
        }

        private static void IncrementCounter(int[] a, int r, int[] counter)
        {
            for (int digit = 0; digit < 20; digit++)
            {
                counter[digit] += (a[r] & (1 << digit)) > 0 ? 1 : 0;
            }
        }
    }
}


namespace Asakatsu20200503
{
    class Program
    {
        static void Main(string[] args)
        {
            IAtCoderQuestion question = new QuestionE();    // 問題に合わせて書き換え
            var answers = question.Solve(Console.In);
            foreach (var answer in answers)
            {
                Console.WriteLine(answer);
            }
        }
    }
}

#region Base Classes

namespace Asakatsu20200503.Questions
{

    public interface IAtCoderQuestion
    {
        IEnumerable<object> Solve(string input);
        IEnumerable<object> Solve(TextReader inputStream);
    }

    public abstract class AtCoderQuestionBase : IAtCoderQuestion
    {
        public IEnumerable<object> Solve(string input)
        {
            var stream = new MemoryStream(Encoding.Unicode.GetBytes(input));
            var reader = new StreamReader(stream, Encoding.Unicode);

            return Solve(reader);
        }

        public abstract IEnumerable<object> Solve(TextReader inputStream);
    }

}

#endregion

#region Extensions

namespace Asakatsu20200503.Extensions
{
    internal static class TextReaderExtensions
    {
        internal static int ReadInt(this TextReader reader) => int.Parse(ReadString(reader));
        internal static long ReadLong(this TextReader reader) => long.Parse(ReadString(reader));
        internal static double ReadDouble(this TextReader reader) => double.Parse(ReadString(reader));
        internal static string ReadString(this TextReader reader) => reader.ReadLine();

        internal static int[] ReadIntArray(this TextReader reader, char separator = ' ') => ReadStringArray(reader, separator).Select(int.Parse).ToArray();
        internal static long[] ReadLongArray(this TextReader reader, char separator = ' ') => ReadStringArray(reader, separator).Select(long.Parse).ToArray();
        internal static double[] ReadDoubleArray(this TextReader reader, char separator = ' ') => ReadStringArray(reader, separator).Select(double.Parse).ToArray();
        internal static string[] ReadStringArray(this TextReader reader, char separator = ' ') => reader.ReadLine().Split(separator);
    }
}

#endregion

Measured memory_bytes: 34268