What is the flange width (mm) for cross section area (cm 2) 16.4?
CREATE TABLE table_23841 (
    "Type" text,
    "Beam height (mm)" real,
    "Flange width (mm)" real,
    "Web thickness (mm)" text,
    "Flange thickness (mm)" text,
    "Weight (kg/m)" text,
    "Cross-section area (cm 2 )" text,
    "Moment of inertia in torsion (J) (cm 4 )" text
)
SELECT COUNT("Flange width (mm)") FROM table_23841 WHERE "Cross-section area (cm 2 )" = '16.4'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the flange width (mm) for cross section area (cm 2) 16.4? ### Input: CREATE TABLE table_23841 (
    "Type" text,
    "Beam height (mm)" real,
    "Flange width (mm)" real,
    "Web thickness (mm)" text,
    "Flange thickness (mm)" text,
    "Weight (kg/m)" text,
    "Cross-section area (cm 2 )" text,
    "Moment of inertia in torsion (J) (cm 4 )" text
) ### Response: SELECT COUNT("Flange width (mm)") FROM table_23841 WHERE "Cross-section area (cm 2 )" = '16.4'