def paintingPlan(n, k):
    """
    :type n: int
    :type k: int
    :rtype: int
    """
    if k == n * n:
        return 1
    count = 0

    def get(num):
        num1 = 1
        for i in range(1, num + 1):
            num1 = num1 * i
        num2 = 1
        for j in range(n, n - num, -1):
            num2 = num2 * j
        return num2 // num1
    for i in range(0, n + 1):
        for j in range(0, n + 1):
            if i * n + j * n - i * j == k:
                if i == 0 and j != 0:
                    count += get(j)
                elif i != 0 and j == 0:
                    count += get(i)
                else:
                    count += get(i) * get(j)
    return count


print(paintingPlan(4, 13))

52b25f7e697b550394ef5f96bdcb77422ba75d4f
<mask token>

def paintingPlan(n, k):
    """
    :type n: int
    :type k: int
    :rtype: int
    """
    if k == n * n:
        return 1
    count = 0

    def get(num):
        num1 = 1
        for i in range(1, num + 1):
            num1 = num1 * i
        num2 = 1
        for j in range(n, n - num, -1):
            num2 = num2 * j
        return num2 // num1
    for i in range(0, n + 1):
        for j in range(0, n + 1):
            if i * n + j * n - i * j == k:
                if i == 0 and j != 0:
                    count += get(j)
                elif i != 0 and j == 0:
                    count += get(i)
                else:
                    count += get(i) * get(j)
    return count


<mask token>

def paintingPlan(n, k):
    """
    :type n: int
    :type k: int
    :rtype: int
    """
    if k == n * n:
        return 1
    count = 0

    def get(num):
        num1 = 1
        for i in range(1, num + 1):
            num1 = num1 * i
        num2 = 1
        for j in range(n, n - num, -1):
            num2 = num2 * j
        return num2 // num1
    for i in range(0, n + 1):
        for j in range(0, n + 1):
            if i * n + j * n - i * j == k:
                if i == 0 and j != 0:
                    count += get(j)
                elif i != 0 and j == 0:
                    count += get(i)
                else:
                    count += get(i) * get(j)
    return count


print(paintingPlan(4, 13))
