Find the first four terms and the 
term of the sequence .
Definitions:
Jugular Venous Pulsations
Observable pulsations of the jugular vein in the neck, used clinically to assess central venous pressure and heart function.
Sternal Angle
Also known as the Angle of Louis, it is the anatomical landmark formed by the junction between the manubrium and the body of the sternum, important in thoracic surgery and medicine.
Heart Failure
A chronic condition where the heart muscle is unable to pump blood as well as it should, leading to symptoms such as shortness of breath and fluid build-up.
Percussion of Heart
A diagnostic procedure where the chest is tapped lightly to determine the size and borders of the heart by the sounds produced.
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