import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.StringReader;
import java.util.StringTokenizer;

public class Main {
    public static void main(String[] args) {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

        br = new BufferedReader(
                new StringReader(
                        "4\n3\n4 4 4\n13\n1 5 4 2 3 6 7 8 9 10 11 12 13\n8\n5 6 7 8 1 2 3 4\n4\n1 2 3 4"));

        try{
        int count = Integer.parseInt(br.readLine());

        while (count-- > 0) {
            int tokenLength = Integer.valueOf(br.readLine());
            int lis=0;
            StringTokenizer st = new StringTokenizer(br.readLine());
            int[] tokenArray = new int[tokenLength];
            int[] tokenArrayDual[] = new int[tokenLength][tokenLength];
            for (int i = 0; i < tokenLength; i++) {
                tokenArray[i] = Integer.valueOf(st.nextToken());
            }

            for (int i = 0; i < tokenLength; i++) {
                for (int j = i; j < tokenLength; j++) {
                    if (i == 0 && j==0) {
                        tokenArrayDual[i][j] = 1;
                    }else if(i>0&& i==j && tokenArrayDual[i-1][j]==0){
                        tokenArrayDual[i][j] = 1;
                    }else if (i==j){
                        tokenArrayDual[i][j]=tokenArrayDual[i-1][j];
                    }   else if (tokenArray[i] < tokenArray[j]) {
                        tokenArrayDual[i][j] = tokenArrayDual[i][i] + 1;
                        if(tokenArrayDual[i][j]>lis)
                            lis=tokenArrayDual[i][j];
                    } else{
                        if(i>0&&tokenArrayDual[i-1][j]!=0)
                            tokenArrayDual[i][j]=tokenArrayDual[i-1][j];
                        else
                            tokenArrayDual[i][j]=0;
                    }
                }
            }
            if(lis==0)lis=1;

            System.out.println(lis);
        }

        //
        }catch(Exception e){}
    }
}