It is concluded that patterns are essential in deriving formulas for sequences.
Using these patterns, a formula was obtained in solving nth term of tribonacci-like
sequence using its first three terms and tribonacci numbers. The formula will be of
great help for other people establishing new formula for other equations that
receive little attention. The derived formula for solving the nth term of a
tribonacci-like sequence was verified in real numbers system by testing the
formula in different examples and was verified through mathematical induction.